diff --git a/gen/com/ibm/Dump/Create/meson.build b/gen/com/ibm/Dump/Create/meson.build
index 94158ae..f36c5e8 100644
--- a/gen/com/ibm/Dump/Create/meson.build
+++ b/gen/com/ibm/Dump/Create/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/Dump/Create__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/Dump/Create.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/Dump/Create.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/Dump/Create',
     ],
 )
diff --git a/gen/com/ibm/Dump/Entry/Hostboot/meson.build b/gen/com/ibm/Dump/Entry/Hostboot/meson.build
index 8d10a84..1955bd6 100644
--- a/gen/com/ibm/Dump/Entry/Hostboot/meson.build
+++ b/gen/com/ibm/Dump/Entry/Hostboot/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/Dump/Entry/Hostboot__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/Dump/Entry/Hostboot.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/Dump/Entry/Hostboot.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/Dump/Entry/Hostboot',
     ],
 )
diff --git a/gen/com/ibm/Dump/Entry/Resource/meson.build b/gen/com/ibm/Dump/Entry/Resource/meson.build
index f815342..be32606 100644
--- a/gen/com/ibm/Dump/Entry/Resource/meson.build
+++ b/gen/com/ibm/Dump/Entry/Resource/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/Dump/Entry/Resource__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/Dump/Entry/Resource.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/Dump/Entry/Resource.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/Dump/Entry/Resource',
     ],
 )
diff --git a/gen/com/ibm/Dump/Entry/meson.build b/gen/com/ibm/Dump/Entry/meson.build
index 0b7b658..2703737 100644
--- a/gen/com/ibm/Dump/Entry/meson.build
+++ b/gen/com/ibm/Dump/Entry/meson.build
@@ -2,13 +2,13 @@
 subdir('Hostboot')
 generated_others += custom_target(
     'com/ibm/Dump/Entry/Hostboot__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/Dump/Entry/Hostboot.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/Dump/Entry/Hostboot.interface.yaml',  ],
     output: [ 'Hostboot.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/Dump/Entry/Hostboot',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('Resource')
 generated_others += custom_target(
     'com/ibm/Dump/Entry/Resource__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/Dump/Entry/Resource.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/Dump/Entry/Resource.interface.yaml',  ],
     output: [ 'Resource.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/Dump/Entry/Resource',
     ],
     build_by_default: true,
diff --git a/gen/com/ibm/Dump/meson.build b/gen/com/ibm/Dump/meson.build
index 685355e..8616d97 100644
--- a/gen/com/ibm/Dump/meson.build
+++ b/gen/com/ibm/Dump/meson.build
@@ -2,13 +2,13 @@
 subdir('Create')
 generated_others += custom_target(
     'com/ibm/Dump/Create__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/Dump/Create.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/Dump/Create.interface.yaml',  ],
     output: [ 'Create.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/Dump/Create',
     ],
     build_by_default: true,
diff --git a/gen/com/ibm/Logging/Policy/meson.build b/gen/com/ibm/Logging/Policy/meson.build
index 83e092d..61b69b3 100644
--- a/gen/com/ibm/Logging/Policy/meson.build
+++ b/gen/com/ibm/Logging/Policy/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/Logging/Policy__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/Logging/Policy.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/Logging/Policy.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/Logging/Policy',
     ],
 )
diff --git a/gen/com/ibm/Logging/meson.build b/gen/com/ibm/Logging/meson.build
index d03b2a8..aa6205b 100644
--- a/gen/com/ibm/Logging/meson.build
+++ b/gen/com/ibm/Logging/meson.build
@@ -2,13 +2,13 @@
 subdir('Policy')
 generated_others += custom_target(
     'com/ibm/Logging/Policy__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/Logging/Policy.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/Logging/Policy.interface.yaml',  ],
     output: [ 'Policy.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/Logging/Policy',
     ],
     build_by_default: true,
diff --git a/gen/com/ibm/VPD/Manager/meson.build b/gen/com/ibm/VPD/Manager/meson.build
index 76994fc..b733478 100644
--- a/gen/com/ibm/VPD/Manager/meson.build
+++ b/gen/com/ibm/VPD/Manager/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/VPD/Manager__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/VPD/Manager.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/VPD/Manager.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/VPD/Manager',
     ],
 )
diff --git a/gen/com/ibm/VPD/meson.build b/gen/com/ibm/VPD/meson.build
index 3d297e2..008ea5e 100644
--- a/gen/com/ibm/VPD/meson.build
+++ b/gen/com/ibm/VPD/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/VPD__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/VPD.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/VPD.errors.yaml',  ],
     output: [ 'error.cpp', 'error.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/VPD',
     ],
 )
@@ -15,13 +15,13 @@
 subdir('Manager')
 generated_others += custom_target(
     'com/ibm/VPD/Manager__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/VPD/Manager.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/VPD/Manager.interface.yaml',  ],
     output: [ 'Manager.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/VPD/Manager',
     ],
     build_by_default: true,
diff --git a/gen/com/ibm/ipzvpd/CP00/meson.build b/gen/com/ibm/ipzvpd/CP00/meson.build
index 14c0029..dce80e4 100644
--- a/gen/com/ibm/ipzvpd/CP00/meson.build
+++ b/gen/com/ibm/ipzvpd/CP00/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/CP00__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/CP00.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/CP00.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/CP00',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/CRP0/meson.build b/gen/com/ibm/ipzvpd/CRP0/meson.build
index e0052e9..ab5ea7c 100644
--- a/gen/com/ibm/ipzvpd/CRP0/meson.build
+++ b/gen/com/ibm/ipzvpd/CRP0/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/CRP0__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/CRP0.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/CRP0.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/CRP0',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/DINF/meson.build b/gen/com/ibm/ipzvpd/DINF/meson.build
index e2a7979..c291b4f 100644
--- a/gen/com/ibm/ipzvpd/DINF/meson.build
+++ b/gen/com/ibm/ipzvpd/DINF/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/DINF__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/DINF.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/DINF.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/DINF',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/LRP0/meson.build b/gen/com/ibm/ipzvpd/LRP0/meson.build
index 4c1dc86..f044baf 100644
--- a/gen/com/ibm/ipzvpd/LRP0/meson.build
+++ b/gen/com/ibm/ipzvpd/LRP0/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/LRP0__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LRP0.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LRP0.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LRP0',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/LRP1/meson.build b/gen/com/ibm/ipzvpd/LRP1/meson.build
index 4eaf50b..93d3980 100644
--- a/gen/com/ibm/ipzvpd/LRP1/meson.build
+++ b/gen/com/ibm/ipzvpd/LRP1/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/LRP1__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LRP1.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LRP1.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LRP1',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/LRP2/meson.build b/gen/com/ibm/ipzvpd/LRP2/meson.build
index 9e7e8a2..972ee30 100644
--- a/gen/com/ibm/ipzvpd/LRP2/meson.build
+++ b/gen/com/ibm/ipzvpd/LRP2/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/LRP2__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LRP2.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LRP2.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LRP2',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/LRP3/meson.build b/gen/com/ibm/ipzvpd/LRP3/meson.build
index a16504a..9a65389 100644
--- a/gen/com/ibm/ipzvpd/LRP3/meson.build
+++ b/gen/com/ibm/ipzvpd/LRP3/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/LRP3__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LRP3.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LRP3.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LRP3',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/LRP4/meson.build b/gen/com/ibm/ipzvpd/LRP4/meson.build
index a952841..bb9cc09 100644
--- a/gen/com/ibm/ipzvpd/LRP4/meson.build
+++ b/gen/com/ibm/ipzvpd/LRP4/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/LRP4__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LRP4.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LRP4.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LRP4',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/LRP5/meson.build b/gen/com/ibm/ipzvpd/LRP5/meson.build
index 89f21ba..2a38af7 100644
--- a/gen/com/ibm/ipzvpd/LRP5/meson.build
+++ b/gen/com/ibm/ipzvpd/LRP5/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/LRP5__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LRP5.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LRP5.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LRP5',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/LRP6/meson.build b/gen/com/ibm/ipzvpd/LRP6/meson.build
index e757d94..2c8381c 100644
--- a/gen/com/ibm/ipzvpd/LRP6/meson.build
+++ b/gen/com/ibm/ipzvpd/LRP6/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/LRP6__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LRP6.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LRP6.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LRP6',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/LRP7/meson.build b/gen/com/ibm/ipzvpd/LRP7/meson.build
index 87b9ad0..02b801e 100644
--- a/gen/com/ibm/ipzvpd/LRP7/meson.build
+++ b/gen/com/ibm/ipzvpd/LRP7/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/LRP7__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LRP7.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LRP7.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LRP7',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/LWP0/meson.build b/gen/com/ibm/ipzvpd/LWP0/meson.build
index 1569af8..8b58e1f 100644
--- a/gen/com/ibm/ipzvpd/LWP0/meson.build
+++ b/gen/com/ibm/ipzvpd/LWP0/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/LWP0__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LWP0.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LWP0.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LWP0',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/LWP1/meson.build b/gen/com/ibm/ipzvpd/LWP1/meson.build
index 1562bbc..148f0b5 100644
--- a/gen/com/ibm/ipzvpd/LWP1/meson.build
+++ b/gen/com/ibm/ipzvpd/LWP1/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/LWP1__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LWP1.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LWP1.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LWP1',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/LWP2/meson.build b/gen/com/ibm/ipzvpd/LWP2/meson.build
index f1894a3..8e688a1 100644
--- a/gen/com/ibm/ipzvpd/LWP2/meson.build
+++ b/gen/com/ibm/ipzvpd/LWP2/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/LWP2__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LWP2.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LWP2.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LWP2',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/LWP3/meson.build b/gen/com/ibm/ipzvpd/LWP3/meson.build
index d88c91d..0715300 100644
--- a/gen/com/ibm/ipzvpd/LWP3/meson.build
+++ b/gen/com/ibm/ipzvpd/LWP3/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/LWP3__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LWP3.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LWP3.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LWP3',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/LWP4/meson.build b/gen/com/ibm/ipzvpd/LWP4/meson.build
index 51887e9..0c6b44e 100644
--- a/gen/com/ibm/ipzvpd/LWP4/meson.build
+++ b/gen/com/ibm/ipzvpd/LWP4/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/LWP4__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LWP4.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LWP4.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LWP4',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/LWP5/meson.build b/gen/com/ibm/ipzvpd/LWP5/meson.build
index 0cfd689..237a98d 100644
--- a/gen/com/ibm/ipzvpd/LWP5/meson.build
+++ b/gen/com/ibm/ipzvpd/LWP5/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/LWP5__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LWP5.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LWP5.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LWP5',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/LWP6/meson.build b/gen/com/ibm/ipzvpd/LWP6/meson.build
index a97b11a..21c0c0b 100644
--- a/gen/com/ibm/ipzvpd/LWP6/meson.build
+++ b/gen/com/ibm/ipzvpd/LWP6/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/LWP6__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LWP6.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LWP6.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LWP6',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/LWP7/meson.build b/gen/com/ibm/ipzvpd/LWP7/meson.build
index 99875e4..6731490 100644
--- a/gen/com/ibm/ipzvpd/LWP7/meson.build
+++ b/gen/com/ibm/ipzvpd/LWP7/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/LWP7__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LWP7.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LWP7.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LWP7',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/LXR0/meson.build b/gen/com/ibm/ipzvpd/LXR0/meson.build
index 40e5921..1d77709 100644
--- a/gen/com/ibm/ipzvpd/LXR0/meson.build
+++ b/gen/com/ibm/ipzvpd/LXR0/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/LXR0__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LXR0.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LXR0.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LXR0',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/Location/meson.build b/gen/com/ibm/ipzvpd/Location/meson.build
index 9a3ae6e..56e59cb 100644
--- a/gen/com/ibm/ipzvpd/Location/meson.build
+++ b/gen/com/ibm/ipzvpd/Location/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/Location__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/Location.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/Location.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/Location',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/MER0/meson.build b/gen/com/ibm/ipzvpd/MER0/meson.build
index ae68d0b..3d5a3c0 100644
--- a/gen/com/ibm/ipzvpd/MER0/meson.build
+++ b/gen/com/ibm/ipzvpd/MER0/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/MER0__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/MER0.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/MER0.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/MER0',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/UTIL/meson.build b/gen/com/ibm/ipzvpd/UTIL/meson.build
index d507550..230445b 100644
--- a/gen/com/ibm/ipzvpd/UTIL/meson.build
+++ b/gen/com/ibm/ipzvpd/UTIL/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/UTIL__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/UTIL.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/UTIL.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/UTIL',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/VCEN/meson.build b/gen/com/ibm/ipzvpd/VCEN/meson.build
index d516d9d..65373d8 100644
--- a/gen/com/ibm/ipzvpd/VCEN/meson.build
+++ b/gen/com/ibm/ipzvpd/VCEN/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/VCEN__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VCEN.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VCEN.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VCEN',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/VCFG/meson.build b/gen/com/ibm/ipzvpd/VCFG/meson.build
index cacdc53..ecaeda0 100644
--- a/gen/com/ibm/ipzvpd/VCFG/meson.build
+++ b/gen/com/ibm/ipzvpd/VCFG/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/VCFG__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VCFG.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VCFG.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VCFG',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/VEIR/meson.build b/gen/com/ibm/ipzvpd/VEIR/meson.build
index 4517bba..7775e54 100644
--- a/gen/com/ibm/ipzvpd/VEIR/meson.build
+++ b/gen/com/ibm/ipzvpd/VEIR/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/VEIR__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VEIR.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VEIR.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VEIR',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/VER0/meson.build b/gen/com/ibm/ipzvpd/VER0/meson.build
index b428d8d..b282c7b 100644
--- a/gen/com/ibm/ipzvpd/VER0/meson.build
+++ b/gen/com/ibm/ipzvpd/VER0/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/VER0__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VER0.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VER0.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VER0',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/VINI/meson.build b/gen/com/ibm/ipzvpd/VINI/meson.build
index 7cfc061..37e60bb 100644
--- a/gen/com/ibm/ipzvpd/VINI/meson.build
+++ b/gen/com/ibm/ipzvpd/VINI/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/VINI__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VINI.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VINI.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VINI',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/VMPU/meson.build b/gen/com/ibm/ipzvpd/VMPU/meson.build
index d796e1b..69c8952 100644
--- a/gen/com/ibm/ipzvpd/VMPU/meson.build
+++ b/gen/com/ibm/ipzvpd/VMPU/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/VMPU__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VMPU.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VMPU.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VMPU',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/VMSC/meson.build b/gen/com/ibm/ipzvpd/VMSC/meson.build
index 40eea40..3805e18 100644
--- a/gen/com/ibm/ipzvpd/VMSC/meson.build
+++ b/gen/com/ibm/ipzvpd/VMSC/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/VMSC__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VMSC.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VMSC.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VMSC',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/VPRI/meson.build b/gen/com/ibm/ipzvpd/VPRI/meson.build
index bf410cc..d476c49 100644
--- a/gen/com/ibm/ipzvpd/VPRI/meson.build
+++ b/gen/com/ibm/ipzvpd/VPRI/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/VPRI__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VPRI.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VPRI.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VPRI',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/VR10/meson.build b/gen/com/ibm/ipzvpd/VR10/meson.build
index 558bed8..45ac513 100644
--- a/gen/com/ibm/ipzvpd/VR10/meson.build
+++ b/gen/com/ibm/ipzvpd/VR10/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/VR10__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VR10.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VR10.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VR10',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/VRML/meson.build b/gen/com/ibm/ipzvpd/VRML/meson.build
index b0017b5..d23ecc7 100644
--- a/gen/com/ibm/ipzvpd/VRML/meson.build
+++ b/gen/com/ibm/ipzvpd/VRML/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/VRML__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VRML.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VRML.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VRML',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/VRTN/meson.build b/gen/com/ibm/ipzvpd/VRTN/meson.build
index f4b0acc..25c91ea 100644
--- a/gen/com/ibm/ipzvpd/VRTN/meson.build
+++ b/gen/com/ibm/ipzvpd/VRTN/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/VRTN__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VRTN.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VRTN.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VRTN',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/VSBP/meson.build b/gen/com/ibm/ipzvpd/VSBP/meson.build
index 1b660c4..e437a71 100644
--- a/gen/com/ibm/ipzvpd/VSBP/meson.build
+++ b/gen/com/ibm/ipzvpd/VSBP/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/VSBP__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VSBP.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VSBP.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VSBP',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/VSRC/meson.build b/gen/com/ibm/ipzvpd/VSRC/meson.build
index 4a4c036..656d949 100644
--- a/gen/com/ibm/ipzvpd/VSRC/meson.build
+++ b/gen/com/ibm/ipzvpd/VSRC/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/VSRC__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VSRC.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VSRC.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VSRC',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/VSYS/meson.build b/gen/com/ibm/ipzvpd/VSYS/meson.build
index df7325c..875ff56 100644
--- a/gen/com/ibm/ipzvpd/VSYS/meson.build
+++ b/gen/com/ibm/ipzvpd/VSYS/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/VSYS__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VSYS.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VSYS.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VSYS',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/VW10/meson.build b/gen/com/ibm/ipzvpd/VW10/meson.build
index 5029940..ba3c802 100644
--- a/gen/com/ibm/ipzvpd/VW10/meson.build
+++ b/gen/com/ibm/ipzvpd/VW10/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/VW10__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VW10.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VW10.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VW10',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/VWML/meson.build b/gen/com/ibm/ipzvpd/VWML/meson.build
index efb8c4a..bf0a910 100644
--- a/gen/com/ibm/ipzvpd/VWML/meson.build
+++ b/gen/com/ibm/ipzvpd/VWML/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/ibm/ipzvpd/VWML__cpp'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VWML.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VWML.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VWML',
     ],
 )
diff --git a/gen/com/ibm/ipzvpd/meson.build b/gen/com/ibm/ipzvpd/meson.build
index cace174..c1878a2 100644
--- a/gen/com/ibm/ipzvpd/meson.build
+++ b/gen/com/ibm/ipzvpd/meson.build
@@ -2,13 +2,13 @@
 subdir('CP00')
 generated_others += custom_target(
     'com/ibm/ipzvpd/CP00__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/CP00.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/CP00.interface.yaml',  ],
     output: [ 'CP00.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/CP00',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('CRP0')
 generated_others += custom_target(
     'com/ibm/ipzvpd/CRP0__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/CRP0.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/CRP0.interface.yaml',  ],
     output: [ 'CRP0.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/CRP0',
     ],
     build_by_default: true,
@@ -32,13 +32,13 @@
 subdir('DINF')
 generated_others += custom_target(
     'com/ibm/ipzvpd/DINF__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/DINF.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/DINF.interface.yaml',  ],
     output: [ 'DINF.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/DINF',
     ],
     build_by_default: true,
@@ -47,13 +47,13 @@
 subdir('LRP0')
 generated_others += custom_target(
     'com/ibm/ipzvpd/LRP0__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LRP0.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LRP0.interface.yaml',  ],
     output: [ 'LRP0.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LRP0',
     ],
     build_by_default: true,
@@ -62,13 +62,13 @@
 subdir('LRP1')
 generated_others += custom_target(
     'com/ibm/ipzvpd/LRP1__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LRP1.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LRP1.interface.yaml',  ],
     output: [ 'LRP1.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LRP1',
     ],
     build_by_default: true,
@@ -77,13 +77,13 @@
 subdir('LRP2')
 generated_others += custom_target(
     'com/ibm/ipzvpd/LRP2__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LRP2.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LRP2.interface.yaml',  ],
     output: [ 'LRP2.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LRP2',
     ],
     build_by_default: true,
@@ -92,13 +92,13 @@
 subdir('LRP3')
 generated_others += custom_target(
     'com/ibm/ipzvpd/LRP3__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LRP3.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LRP3.interface.yaml',  ],
     output: [ 'LRP3.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LRP3',
     ],
     build_by_default: true,
@@ -107,13 +107,13 @@
 subdir('LRP4')
 generated_others += custom_target(
     'com/ibm/ipzvpd/LRP4__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LRP4.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LRP4.interface.yaml',  ],
     output: [ 'LRP4.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LRP4',
     ],
     build_by_default: true,
@@ -122,13 +122,13 @@
 subdir('LRP5')
 generated_others += custom_target(
     'com/ibm/ipzvpd/LRP5__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LRP5.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LRP5.interface.yaml',  ],
     output: [ 'LRP5.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LRP5',
     ],
     build_by_default: true,
@@ -137,13 +137,13 @@
 subdir('LRP6')
 generated_others += custom_target(
     'com/ibm/ipzvpd/LRP6__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LRP6.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LRP6.interface.yaml',  ],
     output: [ 'LRP6.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LRP6',
     ],
     build_by_default: true,
@@ -152,13 +152,13 @@
 subdir('LRP7')
 generated_others += custom_target(
     'com/ibm/ipzvpd/LRP7__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LRP7.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LRP7.interface.yaml',  ],
     output: [ 'LRP7.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LRP7',
     ],
     build_by_default: true,
@@ -167,13 +167,13 @@
 subdir('LWP0')
 generated_others += custom_target(
     'com/ibm/ipzvpd/LWP0__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LWP0.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LWP0.interface.yaml',  ],
     output: [ 'LWP0.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LWP0',
     ],
     build_by_default: true,
@@ -182,13 +182,13 @@
 subdir('LWP1')
 generated_others += custom_target(
     'com/ibm/ipzvpd/LWP1__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LWP1.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LWP1.interface.yaml',  ],
     output: [ 'LWP1.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LWP1',
     ],
     build_by_default: true,
@@ -197,13 +197,13 @@
 subdir('LWP2')
 generated_others += custom_target(
     'com/ibm/ipzvpd/LWP2__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LWP2.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LWP2.interface.yaml',  ],
     output: [ 'LWP2.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LWP2',
     ],
     build_by_default: true,
@@ -212,13 +212,13 @@
 subdir('LWP3')
 generated_others += custom_target(
     'com/ibm/ipzvpd/LWP3__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LWP3.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LWP3.interface.yaml',  ],
     output: [ 'LWP3.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LWP3',
     ],
     build_by_default: true,
@@ -227,13 +227,13 @@
 subdir('LWP4')
 generated_others += custom_target(
     'com/ibm/ipzvpd/LWP4__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LWP4.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LWP4.interface.yaml',  ],
     output: [ 'LWP4.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LWP4',
     ],
     build_by_default: true,
@@ -242,13 +242,13 @@
 subdir('LWP5')
 generated_others += custom_target(
     'com/ibm/ipzvpd/LWP5__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LWP5.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LWP5.interface.yaml',  ],
     output: [ 'LWP5.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LWP5',
     ],
     build_by_default: true,
@@ -257,13 +257,13 @@
 subdir('LWP6')
 generated_others += custom_target(
     'com/ibm/ipzvpd/LWP6__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LWP6.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LWP6.interface.yaml',  ],
     output: [ 'LWP6.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LWP6',
     ],
     build_by_default: true,
@@ -272,13 +272,13 @@
 subdir('LWP7')
 generated_others += custom_target(
     'com/ibm/ipzvpd/LWP7__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LWP7.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LWP7.interface.yaml',  ],
     output: [ 'LWP7.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LWP7',
     ],
     build_by_default: true,
@@ -287,13 +287,13 @@
 subdir('LXR0')
 generated_others += custom_target(
     'com/ibm/ipzvpd/LXR0__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/LXR0.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/LXR0.interface.yaml',  ],
     output: [ 'LXR0.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/LXR0',
     ],
     build_by_default: true,
@@ -302,13 +302,13 @@
 subdir('Location')
 generated_others += custom_target(
     'com/ibm/ipzvpd/Location__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/Location.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/Location.interface.yaml',  ],
     output: [ 'Location.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/Location',
     ],
     build_by_default: true,
@@ -317,13 +317,13 @@
 subdir('MER0')
 generated_others += custom_target(
     'com/ibm/ipzvpd/MER0__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/MER0.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/MER0.interface.yaml',  ],
     output: [ 'MER0.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/MER0',
     ],
     build_by_default: true,
@@ -332,13 +332,13 @@
 subdir('UTIL')
 generated_others += custom_target(
     'com/ibm/ipzvpd/UTIL__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/UTIL.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/UTIL.interface.yaml',  ],
     output: [ 'UTIL.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/UTIL',
     ],
     build_by_default: true,
@@ -347,13 +347,13 @@
 subdir('VCEN')
 generated_others += custom_target(
     'com/ibm/ipzvpd/VCEN__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VCEN.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VCEN.interface.yaml',  ],
     output: [ 'VCEN.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VCEN',
     ],
     build_by_default: true,
@@ -362,13 +362,13 @@
 subdir('VCFG')
 generated_others += custom_target(
     'com/ibm/ipzvpd/VCFG__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VCFG.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VCFG.interface.yaml',  ],
     output: [ 'VCFG.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VCFG',
     ],
     build_by_default: true,
@@ -377,13 +377,13 @@
 subdir('VEIR')
 generated_others += custom_target(
     'com/ibm/ipzvpd/VEIR__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VEIR.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VEIR.interface.yaml',  ],
     output: [ 'VEIR.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VEIR',
     ],
     build_by_default: true,
@@ -392,13 +392,13 @@
 subdir('VER0')
 generated_others += custom_target(
     'com/ibm/ipzvpd/VER0__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VER0.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VER0.interface.yaml',  ],
     output: [ 'VER0.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VER0',
     ],
     build_by_default: true,
@@ -407,13 +407,13 @@
 subdir('VINI')
 generated_others += custom_target(
     'com/ibm/ipzvpd/VINI__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VINI.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VINI.interface.yaml',  ],
     output: [ 'VINI.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VINI',
     ],
     build_by_default: true,
@@ -422,13 +422,13 @@
 subdir('VMPU')
 generated_others += custom_target(
     'com/ibm/ipzvpd/VMPU__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VMPU.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VMPU.interface.yaml',  ],
     output: [ 'VMPU.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VMPU',
     ],
     build_by_default: true,
@@ -437,13 +437,13 @@
 subdir('VMSC')
 generated_others += custom_target(
     'com/ibm/ipzvpd/VMSC__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VMSC.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VMSC.interface.yaml',  ],
     output: [ 'VMSC.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VMSC',
     ],
     build_by_default: true,
@@ -452,13 +452,13 @@
 subdir('VPRI')
 generated_others += custom_target(
     'com/ibm/ipzvpd/VPRI__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VPRI.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VPRI.interface.yaml',  ],
     output: [ 'VPRI.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VPRI',
     ],
     build_by_default: true,
@@ -467,13 +467,13 @@
 subdir('VR10')
 generated_others += custom_target(
     'com/ibm/ipzvpd/VR10__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VR10.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VR10.interface.yaml',  ],
     output: [ 'VR10.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VR10',
     ],
     build_by_default: true,
@@ -482,13 +482,13 @@
 subdir('VRML')
 generated_others += custom_target(
     'com/ibm/ipzvpd/VRML__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VRML.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VRML.interface.yaml',  ],
     output: [ 'VRML.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VRML',
     ],
     build_by_default: true,
@@ -497,13 +497,13 @@
 subdir('VRTN')
 generated_others += custom_target(
     'com/ibm/ipzvpd/VRTN__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VRTN.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VRTN.interface.yaml',  ],
     output: [ 'VRTN.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VRTN',
     ],
     build_by_default: true,
@@ -512,13 +512,13 @@
 subdir('VSBP')
 generated_others += custom_target(
     'com/ibm/ipzvpd/VSBP__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VSBP.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VSBP.interface.yaml',  ],
     output: [ 'VSBP.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VSBP',
     ],
     build_by_default: true,
@@ -527,13 +527,13 @@
 subdir('VSRC')
 generated_others += custom_target(
     'com/ibm/ipzvpd/VSRC__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VSRC.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VSRC.interface.yaml',  ],
     output: [ 'VSRC.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VSRC',
     ],
     build_by_default: true,
@@ -542,13 +542,13 @@
 subdir('VSYS')
 generated_others += custom_target(
     'com/ibm/ipzvpd/VSYS__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VSYS.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VSYS.interface.yaml',  ],
     output: [ 'VSYS.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VSYS',
     ],
     build_by_default: true,
@@ -557,13 +557,13 @@
 subdir('VW10')
 generated_others += custom_target(
     'com/ibm/ipzvpd/VW10__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VW10.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VW10.interface.yaml',  ],
     output: [ 'VW10.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VW10',
     ],
     build_by_default: true,
@@ -572,13 +572,13 @@
 subdir('VWML')
 generated_others += custom_target(
     'com/ibm/ipzvpd/VWML__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/ipzvpd/VWML.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/ipzvpd/VWML.interface.yaml',  ],
     output: [ 'VWML.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/ipzvpd/VWML',
     ],
     build_by_default: true,
diff --git a/gen/com/ibm/meson.build b/gen/com/ibm/meson.build
index f02aa97..cec211b 100644
--- a/gen/com/ibm/meson.build
+++ b/gen/com/ibm/meson.build
@@ -4,13 +4,13 @@
 subdir('VPD')
 generated_others += custom_target(
     'com/ibm/VPD__markdown'.underscorify(),
-    input: [ meson.source_root() / 'com/ibm/VPD.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'com/ibm/VPD.errors.yaml',  ],
     output: [ 'VPD.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'com/ibm/VPD',
     ],
     build_by_default: true,
diff --git a/gen/meson.build b/gen/meson.build
index 50bb831..af850f2 100644
--- a/gen/meson.build
+++ b/gen/meson.build
@@ -4,10 +4,10 @@
     '--version',
 ).stdout().strip().split('\n')[0]
 
-if sdbuspp_gen_meson_ver != 'sdbus++-gen-meson version 1'
+if sdbuspp_gen_meson_ver != 'sdbus++-gen-meson version 2'
     warning('Generated meson files from wrong version of sdbus++-gen-meson.')
     warning(
-        'Expected "sdbus++-gen-meson version 1", got:',
+        'Expected "sdbus++-gen-meson version 2", got:',
         sdbuspp_gen_meson_ver
     )
 endif
diff --git a/gen/org/open_power/Common/Callout/meson.build b/gen/org/open_power/Common/Callout/meson.build
index d208fec..3b9e4b4 100644
--- a/gen/org/open_power/Common/Callout/meson.build
+++ b/gen/org/open_power/Common/Callout/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'org/open_power/Common/Callout__cpp'.underscorify(),
-    input: [ meson.source_root() / 'org/open_power/Common/Callout.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'org/open_power/Common/Callout.errors.yaml',  ],
     output: [ 'error.cpp', 'error.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'org/open_power/Common/Callout',
     ],
 )
diff --git a/gen/org/open_power/Common/meson.build b/gen/org/open_power/Common/meson.build
index 0963f9b..60c3605 100644
--- a/gen/org/open_power/Common/meson.build
+++ b/gen/org/open_power/Common/meson.build
@@ -2,13 +2,13 @@
 subdir('Callout')
 generated_others += custom_target(
     'org/open_power/Common/Callout__markdown'.underscorify(),
-    input: [ meson.source_root() / 'org/open_power/Common/Callout.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'org/open_power/Common/Callout.errors.yaml',  ],
     output: [ 'Callout.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'org/open_power/Common/Callout',
     ],
     build_by_default: true,
diff --git a/gen/org/open_power/Control/Host/meson.build b/gen/org/open_power/Control/Host/meson.build
index d1f76c8..2ee93bb 100644
--- a/gen/org/open_power/Control/Host/meson.build
+++ b/gen/org/open_power/Control/Host/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'org/open_power/Control/Host__cpp'.underscorify(),
-    input: [ meson.source_root() / 'org/open_power/Control/Host.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'org/open_power/Control/Host.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'org/open_power/Control/Host',
     ],
 )
diff --git a/gen/org/open_power/Control/TPM/SecurityKeys/meson.build b/gen/org/open_power/Control/TPM/SecurityKeys/meson.build
index a7ba244..3fce1c3 100644
--- a/gen/org/open_power/Control/TPM/SecurityKeys/meson.build
+++ b/gen/org/open_power/Control/TPM/SecurityKeys/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'org/open_power/Control/TPM/SecurityKeys__cpp'.underscorify(),
-    input: [ meson.source_root() / 'org/open_power/Control/TPM/SecurityKeys.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'org/open_power/Control/TPM/SecurityKeys.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'org/open_power/Control/TPM/SecurityKeys',
     ],
 )
diff --git a/gen/org/open_power/Control/TPM/meson.build b/gen/org/open_power/Control/TPM/meson.build
index 5150101..d0508fa 100644
--- a/gen/org/open_power/Control/TPM/meson.build
+++ b/gen/org/open_power/Control/TPM/meson.build
@@ -2,13 +2,13 @@
 subdir('SecurityKeys')
 generated_others += custom_target(
     'org/open_power/Control/TPM/SecurityKeys__markdown'.underscorify(),
-    input: [ meson.source_root() / 'org/open_power/Control/TPM/SecurityKeys.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'org/open_power/Control/TPM/SecurityKeys.interface.yaml',  ],
     output: [ 'SecurityKeys.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'org/open_power/Control/TPM/SecurityKeys',
     ],
     build_by_default: true,
diff --git a/gen/org/open_power/Control/meson.build b/gen/org/open_power/Control/meson.build
index decab67..4a3a327 100644
--- a/gen/org/open_power/Control/meson.build
+++ b/gen/org/open_power/Control/meson.build
@@ -2,13 +2,13 @@
 subdir('Host')
 generated_others += custom_target(
     'org/open_power/Control/Host__markdown'.underscorify(),
-    input: [ meson.source_root() / 'org/open_power/Control/Host.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'org/open_power/Control/Host.interface.yaml',  ],
     output: [ 'Host.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'org/open_power/Control/Host',
     ],
     build_by_default: true,
diff --git a/gen/org/open_power/Host/Access/meson.build b/gen/org/open_power/Host/Access/meson.build
index c93f760..0f56f1c 100644
--- a/gen/org/open_power/Host/Access/meson.build
+++ b/gen/org/open_power/Host/Access/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'org/open_power/Host/Access__cpp'.underscorify(),
-    input: [ meson.source_root() / 'org/open_power/Host/Access.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'org/open_power/Host/Access.errors.yaml',  ],
     output: [ 'error.cpp', 'error.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'org/open_power/Host/Access',
     ],
 )
diff --git a/gen/org/open_power/Host/meson.build b/gen/org/open_power/Host/meson.build
index 903502b..f59ee92 100644
--- a/gen/org/open_power/Host/meson.build
+++ b/gen/org/open_power/Host/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'org/open_power/Host__cpp'.underscorify(),
-    input: [ meson.source_root() / 'org/open_power/Host.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'org/open_power/Host.errors.yaml',  ],
     output: [ 'error.cpp', 'error.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'org/open_power/Host',
     ],
 )
@@ -15,13 +15,13 @@
 subdir('Access')
 generated_others += custom_target(
     'org/open_power/Host/Access__markdown'.underscorify(),
-    input: [ meson.source_root() / 'org/open_power/Host/Access.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'org/open_power/Host/Access.errors.yaml',  ],
     output: [ 'Access.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'org/open_power/Host/Access',
     ],
     build_by_default: true,
diff --git a/gen/org/open_power/Inventory/Decorator/Asset/meson.build b/gen/org/open_power/Inventory/Decorator/Asset/meson.build
index 36867b1..dd31f0d 100644
--- a/gen/org/open_power/Inventory/Decorator/Asset/meson.build
+++ b/gen/org/open_power/Inventory/Decorator/Asset/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'org/open_power/Inventory/Decorator/Asset__cpp'.underscorify(),
-    input: [ meson.source_root() / 'org/open_power/Inventory/Decorator/Asset.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'org/open_power/Inventory/Decorator/Asset.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'org/open_power/Inventory/Decorator/Asset',
     ],
 )
diff --git a/gen/org/open_power/Inventory/Decorator/meson.build b/gen/org/open_power/Inventory/Decorator/meson.build
index a49b346..f1c9d52 100644
--- a/gen/org/open_power/Inventory/Decorator/meson.build
+++ b/gen/org/open_power/Inventory/Decorator/meson.build
@@ -2,13 +2,13 @@
 subdir('Asset')
 generated_others += custom_target(
     'org/open_power/Inventory/Decorator/Asset__markdown'.underscorify(),
-    input: [ meson.source_root() / 'org/open_power/Inventory/Decorator/Asset.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'org/open_power/Inventory/Decorator/Asset.interface.yaml',  ],
     output: [ 'Asset.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'org/open_power/Inventory/Decorator/Asset',
     ],
     build_by_default: true,
diff --git a/gen/org/open_power/Logging/PEL/meson.build b/gen/org/open_power/Logging/PEL/meson.build
index b39f5fd..bac74e2 100644
--- a/gen/org/open_power/Logging/PEL/meson.build
+++ b/gen/org/open_power/Logging/PEL/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'org/open_power/Logging/PEL__cpp'.underscorify(),
-    input: [ meson.source_root() / 'org/open_power/Logging/PEL.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'org/open_power/Logging/PEL.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'org/open_power/Logging/PEL',
     ],
 )
diff --git a/gen/org/open_power/Logging/meson.build b/gen/org/open_power/Logging/meson.build
index 64eee43..5132c2f 100644
--- a/gen/org/open_power/Logging/meson.build
+++ b/gen/org/open_power/Logging/meson.build
@@ -2,13 +2,13 @@
 subdir('PEL')
 generated_others += custom_target(
     'org/open_power/Logging/PEL__markdown'.underscorify(),
-    input: [ meson.source_root() / 'org/open_power/Logging/PEL.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'org/open_power/Logging/PEL.interface.yaml',  ],
     output: [ 'PEL.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'org/open_power/Logging/PEL',
     ],
     build_by_default: true,
diff --git a/gen/org/open_power/OCC/PassThrough/meson.build b/gen/org/open_power/OCC/PassThrough/meson.build
index 946dc58..229a82f 100644
--- a/gen/org/open_power/OCC/PassThrough/meson.build
+++ b/gen/org/open_power/OCC/PassThrough/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'org/open_power/OCC/PassThrough__cpp'.underscorify(),
-    input: [ meson.source_root() / 'org/open_power/OCC/PassThrough.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'org/open_power/OCC/PassThrough.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'org/open_power/OCC/PassThrough',
     ],
 )
diff --git a/gen/org/open_power/OCC/Status/meson.build b/gen/org/open_power/OCC/Status/meson.build
index 3ee4d09..30a0c70 100644
--- a/gen/org/open_power/OCC/Status/meson.build
+++ b/gen/org/open_power/OCC/Status/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'org/open_power/OCC/Status__cpp'.underscorify(),
-    input: [ meson.source_root() / 'org/open_power/OCC/Status.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'org/open_power/OCC/Status.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'org/open_power/OCC/Status',
     ],
 )
diff --git a/gen/org/open_power/OCC/meson.build b/gen/org/open_power/OCC/meson.build
index 2effb8a..70d9c72 100644
--- a/gen/org/open_power/OCC/meson.build
+++ b/gen/org/open_power/OCC/meson.build
@@ -2,13 +2,13 @@
 subdir('PassThrough')
 generated_others += custom_target(
     'org/open_power/OCC/PassThrough__markdown'.underscorify(),
-    input: [ meson.source_root() / 'org/open_power/OCC/PassThrough.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'org/open_power/OCC/PassThrough.interface.yaml',  ],
     output: [ 'PassThrough.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'org/open_power/OCC/PassThrough',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('Status')
 generated_others += custom_target(
     'org/open_power/OCC/Status__markdown'.underscorify(),
-    input: [ meson.source_root() / 'org/open_power/OCC/Status.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'org/open_power/OCC/Status.interface.yaml',  ],
     output: [ 'Status.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'org/open_power/OCC/Status',
     ],
     build_by_default: true,
diff --git a/gen/org/open_power/Proc/FSI/meson.build b/gen/org/open_power/Proc/FSI/meson.build
index 19f8bdd..72fb7c3 100644
--- a/gen/org/open_power/Proc/FSI/meson.build
+++ b/gen/org/open_power/Proc/FSI/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'org/open_power/Proc/FSI__cpp'.underscorify(),
-    input: [ meson.source_root() / 'org/open_power/Proc/FSI.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'org/open_power/Proc/FSI.errors.yaml',  ],
     output: [ 'error.cpp', 'error.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'org/open_power/Proc/FSI',
     ],
 )
diff --git a/gen/org/open_power/Proc/meson.build b/gen/org/open_power/Proc/meson.build
index 5ee8c64..0914954 100644
--- a/gen/org/open_power/Proc/meson.build
+++ b/gen/org/open_power/Proc/meson.build
@@ -2,13 +2,13 @@
 subdir('FSI')
 generated_others += custom_target(
     'org/open_power/Proc/FSI__markdown'.underscorify(),
-    input: [ meson.source_root() / 'org/open_power/Proc/FSI.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'org/open_power/Proc/FSI.errors.yaml',  ],
     output: [ 'FSI.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'org/open_power/Proc/FSI',
     ],
     build_by_default: true,
diff --git a/gen/org/open_power/Sensor/Aggregation/History/Average/meson.build b/gen/org/open_power/Sensor/Aggregation/History/Average/meson.build
index 8b4c869..3f11784 100644
--- a/gen/org/open_power/Sensor/Aggregation/History/Average/meson.build
+++ b/gen/org/open_power/Sensor/Aggregation/History/Average/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'org/open_power/Sensor/Aggregation/History/Average__cpp'.underscorify(),
-    input: [ meson.source_root() / 'org/open_power/Sensor/Aggregation/History/Average.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'org/open_power/Sensor/Aggregation/History/Average.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'org/open_power/Sensor/Aggregation/History/Average',
     ],
 )
diff --git a/gen/org/open_power/Sensor/Aggregation/History/Maximum/meson.build b/gen/org/open_power/Sensor/Aggregation/History/Maximum/meson.build
index 6bf6e23..9af0461 100644
--- a/gen/org/open_power/Sensor/Aggregation/History/Maximum/meson.build
+++ b/gen/org/open_power/Sensor/Aggregation/History/Maximum/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'org/open_power/Sensor/Aggregation/History/Maximum__cpp'.underscorify(),
-    input: [ meson.source_root() / 'org/open_power/Sensor/Aggregation/History/Maximum.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'org/open_power/Sensor/Aggregation/History/Maximum.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'org/open_power/Sensor/Aggregation/History/Maximum',
     ],
 )
diff --git a/gen/org/open_power/Sensor/Aggregation/History/meson.build b/gen/org/open_power/Sensor/Aggregation/History/meson.build
index 5771c9f..95b0232 100644
--- a/gen/org/open_power/Sensor/Aggregation/History/meson.build
+++ b/gen/org/open_power/Sensor/Aggregation/History/meson.build
@@ -2,13 +2,13 @@
 subdir('Average')
 generated_others += custom_target(
     'org/open_power/Sensor/Aggregation/History/Average__markdown'.underscorify(),
-    input: [ meson.source_root() / 'org/open_power/Sensor/Aggregation/History/Average.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'org/open_power/Sensor/Aggregation/History/Average.interface.yaml',  ],
     output: [ 'Average.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'org/open_power/Sensor/Aggregation/History/Average',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('Maximum')
 generated_others += custom_target(
     'org/open_power/Sensor/Aggregation/History/Maximum__markdown'.underscorify(),
-    input: [ meson.source_root() / 'org/open_power/Sensor/Aggregation/History/Maximum.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'org/open_power/Sensor/Aggregation/History/Maximum.interface.yaml',  ],
     output: [ 'Maximum.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'org/open_power/Sensor/Aggregation/History/Maximum',
     ],
     build_by_default: true,
diff --git a/gen/org/open_power/meson.build b/gen/org/open_power/meson.build
index 992de62..1d10677 100644
--- a/gen/org/open_power/meson.build
+++ b/gen/org/open_power/meson.build
@@ -4,13 +4,13 @@
 subdir('Host')
 generated_others += custom_target(
     'org/open_power/Host__markdown'.underscorify(),
-    input: [ meson.source_root() / 'org/open_power/Host.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'org/open_power/Host.errors.yaml',  ],
     output: [ 'Host.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'org/open_power/Host',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Association/Definitions/meson.build b/gen/xyz/openbmc_project/Association/Definitions/meson.build
index 20b75ef..636dcb7 100644
--- a/gen/xyz/openbmc_project/Association/Definitions/meson.build
+++ b/gen/xyz/openbmc_project/Association/Definitions/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Association/Definitions__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Association/Definitions.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Association/Definitions.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Association/Definitions',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Association/meson.build b/gen/xyz/openbmc_project/Association/meson.build
index effa4a2..2b828f8 100644
--- a/gen/xyz/openbmc_project/Association/meson.build
+++ b/gen/xyz/openbmc_project/Association/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Association__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Association.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Association.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Association',
     ],
 )
@@ -15,13 +15,13 @@
 subdir('Definitions')
 generated_others += custom_target(
     'xyz/openbmc_project/Association/Definitions__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Association/Definitions.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Association/Definitions.interface.yaml',  ],
     output: [ 'Definitions.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Association/Definitions',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/BIOSConfig/Common/meson.build b/gen/xyz/openbmc_project/BIOSConfig/Common/meson.build
index 6895367..b55dc82 100644
--- a/gen/xyz/openbmc_project/BIOSConfig/Common/meson.build
+++ b/gen/xyz/openbmc_project/BIOSConfig/Common/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/BIOSConfig/Common__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/BIOSConfig/Common.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/BIOSConfig/Common.errors.yaml',  ],
     output: [ 'error.cpp', 'error.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/BIOSConfig/Common',
     ],
 )
diff --git a/gen/xyz/openbmc_project/BIOSConfig/Manager/meson.build b/gen/xyz/openbmc_project/BIOSConfig/Manager/meson.build
index 1f7886a..a947527 100644
--- a/gen/xyz/openbmc_project/BIOSConfig/Manager/meson.build
+++ b/gen/xyz/openbmc_project/BIOSConfig/Manager/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/BIOSConfig/Manager__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/BIOSConfig/Manager.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/BIOSConfig/Manager.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/BIOSConfig/Manager',
     ],
 )
diff --git a/gen/xyz/openbmc_project/BIOSConfig/Password/meson.build b/gen/xyz/openbmc_project/BIOSConfig/Password/meson.build
index 3fec4c5..9ae7d21 100644
--- a/gen/xyz/openbmc_project/BIOSConfig/Password/meson.build
+++ b/gen/xyz/openbmc_project/BIOSConfig/Password/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/BIOSConfig/Password__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/BIOSConfig/Password.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/BIOSConfig/Password.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/BIOSConfig/Password',
     ],
 )
diff --git a/gen/xyz/openbmc_project/BIOSConfig/meson.build b/gen/xyz/openbmc_project/BIOSConfig/meson.build
index 52ae16c..2f88e69 100644
--- a/gen/xyz/openbmc_project/BIOSConfig/meson.build
+++ b/gen/xyz/openbmc_project/BIOSConfig/meson.build
@@ -2,13 +2,13 @@
 subdir('Common')
 generated_others += custom_target(
     'xyz/openbmc_project/BIOSConfig/Common__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/BIOSConfig/Common.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/BIOSConfig/Common.errors.yaml',  ],
     output: [ 'Common.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/BIOSConfig/Common',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('Manager')
 generated_others += custom_target(
     'xyz/openbmc_project/BIOSConfig/Manager__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/BIOSConfig/Manager.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/BIOSConfig/Manager.interface.yaml',  ],
     output: [ 'Manager.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/BIOSConfig/Manager',
     ],
     build_by_default: true,
@@ -32,13 +32,13 @@
 subdir('Password')
 generated_others += custom_target(
     'xyz/openbmc_project/BIOSConfig/Password__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/BIOSConfig/Password.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/BIOSConfig/Password.interface.yaml',  ],
     output: [ 'Password.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/BIOSConfig/Password',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Certs/Authority/meson.build b/gen/xyz/openbmc_project/Certs/Authority/meson.build
index 42f5c16..b9ec78e 100644
--- a/gen/xyz/openbmc_project/Certs/Authority/meson.build
+++ b/gen/xyz/openbmc_project/Certs/Authority/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Certs/Authority__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Certs/Authority.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Certs/Authority.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Certs/Authority',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Certs/CSR/Create/meson.build b/gen/xyz/openbmc_project/Certs/CSR/Create/meson.build
index e5e56f4..0e17583 100644
--- a/gen/xyz/openbmc_project/Certs/CSR/Create/meson.build
+++ b/gen/xyz/openbmc_project/Certs/CSR/Create/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Certs/CSR/Create__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Certs/CSR/Create.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Certs/CSR/Create.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Certs/CSR/Create',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Certs/CSR/meson.build b/gen/xyz/openbmc_project/Certs/CSR/meson.build
index c5a4f7e..94c2e82 100644
--- a/gen/xyz/openbmc_project/Certs/CSR/meson.build
+++ b/gen/xyz/openbmc_project/Certs/CSR/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Certs/CSR__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Certs/CSR.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Certs/CSR.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Certs/CSR',
     ],
 )
@@ -15,13 +15,13 @@
 subdir('Create')
 generated_others += custom_target(
     'xyz/openbmc_project/Certs/CSR/Create__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Certs/CSR/Create.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Certs/CSR/Create.interface.yaml',  ],
     output: [ 'Create.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Certs/CSR/Create',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Certs/Certificate/meson.build b/gen/xyz/openbmc_project/Certs/Certificate/meson.build
index c823070..b45c8cb 100644
--- a/gen/xyz/openbmc_project/Certs/Certificate/meson.build
+++ b/gen/xyz/openbmc_project/Certs/Certificate/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Certs/Certificate__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Certs/Certificate.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Certs/Certificate.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Certs/Certificate',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Certs/Entry/meson.build b/gen/xyz/openbmc_project/Certs/Entry/meson.build
index 93772f4..0518e9c 100644
--- a/gen/xyz/openbmc_project/Certs/Entry/meson.build
+++ b/gen/xyz/openbmc_project/Certs/Entry/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Certs/Entry__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Certs/Entry.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Certs/Entry.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Certs/Entry',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Certs/Install/meson.build b/gen/xyz/openbmc_project/Certs/Install/meson.build
index 09dfc4e..9da4089 100644
--- a/gen/xyz/openbmc_project/Certs/Install/meson.build
+++ b/gen/xyz/openbmc_project/Certs/Install/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Certs/Install__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Certs/Install.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Certs/Install.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Certs/Install',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Certs/Replace/meson.build b/gen/xyz/openbmc_project/Certs/Replace/meson.build
index 3e0837b..502b8c4 100644
--- a/gen/xyz/openbmc_project/Certs/Replace/meson.build
+++ b/gen/xyz/openbmc_project/Certs/Replace/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Certs/Replace__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Certs/Replace.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Certs/Replace.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Certs/Replace',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Certs/meson.build b/gen/xyz/openbmc_project/Certs/meson.build
index c924560..5a809b8 100644
--- a/gen/xyz/openbmc_project/Certs/meson.build
+++ b/gen/xyz/openbmc_project/Certs/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Certs__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Certs.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Certs.errors.yaml',  ],
     output: [ 'error.cpp', 'error.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Certs',
     ],
 )
@@ -15,13 +15,13 @@
 subdir('Authority')
 generated_others += custom_target(
     'xyz/openbmc_project/Certs/Authority__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Certs/Authority.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Certs/Authority.interface.yaml',  ],
     output: [ 'Authority.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Certs/Authority',
     ],
     build_by_default: true,
@@ -30,13 +30,13 @@
 subdir('CSR')
 generated_others += custom_target(
     'xyz/openbmc_project/Certs/CSR__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Certs/CSR.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Certs/CSR.interface.yaml',  ],
     output: [ 'CSR.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Certs/CSR',
     ],
     build_by_default: true,
@@ -45,13 +45,13 @@
 subdir('Certificate')
 generated_others += custom_target(
     'xyz/openbmc_project/Certs/Certificate__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Certs/Certificate.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Certs/Certificate.interface.yaml',  ],
     output: [ 'Certificate.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Certs/Certificate',
     ],
     build_by_default: true,
@@ -60,13 +60,13 @@
 subdir('Entry')
 generated_others += custom_target(
     'xyz/openbmc_project/Certs/Entry__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Certs/Entry.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Certs/Entry.interface.yaml',  ],
     output: [ 'Entry.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Certs/Entry',
     ],
     build_by_default: true,
@@ -75,13 +75,13 @@
 subdir('Install')
 generated_others += custom_target(
     'xyz/openbmc_project/Certs/Install__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Certs/Install.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Certs/Install.interface.yaml',  ],
     output: [ 'Install.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Certs/Install',
     ],
     build_by_default: true,
@@ -90,13 +90,13 @@
 subdir('Replace')
 generated_others += custom_target(
     'xyz/openbmc_project/Certs/Replace__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Certs/Replace.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Certs/Replace.interface.yaml',  ],
     output: [ 'Replace.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Certs/Replace',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Channel/ChannelAccess/meson.build b/gen/xyz/openbmc_project/Channel/ChannelAccess/meson.build
index 30c1575..4d416ed 100644
--- a/gen/xyz/openbmc_project/Channel/ChannelAccess/meson.build
+++ b/gen/xyz/openbmc_project/Channel/ChannelAccess/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Channel/ChannelAccess__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Channel/ChannelAccess.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Channel/ChannelAccess.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Channel/ChannelAccess',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Channel/meson.build b/gen/xyz/openbmc_project/Channel/meson.build
index fe3c203..b026944 100644
--- a/gen/xyz/openbmc_project/Channel/meson.build
+++ b/gen/xyz/openbmc_project/Channel/meson.build
@@ -2,13 +2,13 @@
 subdir('ChannelAccess')
 generated_others += custom_target(
     'xyz/openbmc_project/Channel/ChannelAccess__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Channel/ChannelAccess.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Channel/ChannelAccess.interface.yaml',  ],
     output: [ 'ChannelAccess.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Channel/ChannelAccess',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Chassis/Buttons/ID/meson.build b/gen/xyz/openbmc_project/Chassis/Buttons/ID/meson.build
index 2240567..395f297 100644
--- a/gen/xyz/openbmc_project/Chassis/Buttons/ID/meson.build
+++ b/gen/xyz/openbmc_project/Chassis/Buttons/ID/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Chassis/Buttons/ID__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Chassis/Buttons/ID.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Chassis/Buttons/ID.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Chassis/Buttons/ID',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Chassis/Buttons/NMI/meson.build b/gen/xyz/openbmc_project/Chassis/Buttons/NMI/meson.build
index 6ebd167..61b09da 100644
--- a/gen/xyz/openbmc_project/Chassis/Buttons/NMI/meson.build
+++ b/gen/xyz/openbmc_project/Chassis/Buttons/NMI/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Chassis/Buttons/NMI__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Chassis/Buttons/NMI.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Chassis/Buttons/NMI.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Chassis/Buttons/NMI',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Chassis/Buttons/Power/meson.build b/gen/xyz/openbmc_project/Chassis/Buttons/Power/meson.build
index 99b9119..12b5dfa 100644
--- a/gen/xyz/openbmc_project/Chassis/Buttons/Power/meson.build
+++ b/gen/xyz/openbmc_project/Chassis/Buttons/Power/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Chassis/Buttons/Power__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Chassis/Buttons/Power.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Chassis/Buttons/Power.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Chassis/Buttons/Power',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Chassis/Buttons/Reset/meson.build b/gen/xyz/openbmc_project/Chassis/Buttons/Reset/meson.build
index b0c7a2f..ba047d5 100644
--- a/gen/xyz/openbmc_project/Chassis/Buttons/Reset/meson.build
+++ b/gen/xyz/openbmc_project/Chassis/Buttons/Reset/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Chassis/Buttons/Reset__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Chassis/Buttons/Reset.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Chassis/Buttons/Reset.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Chassis/Buttons/Reset',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Chassis/Buttons/meson.build b/gen/xyz/openbmc_project/Chassis/Buttons/meson.build
index 82794e1..b830aef 100644
--- a/gen/xyz/openbmc_project/Chassis/Buttons/meson.build
+++ b/gen/xyz/openbmc_project/Chassis/Buttons/meson.build
@@ -2,13 +2,13 @@
 subdir('ID')
 generated_others += custom_target(
     'xyz/openbmc_project/Chassis/Buttons/ID__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Chassis/Buttons/ID.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Chassis/Buttons/ID.interface.yaml',  ],
     output: [ 'ID.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Chassis/Buttons/ID',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('NMI')
 generated_others += custom_target(
     'xyz/openbmc_project/Chassis/Buttons/NMI__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Chassis/Buttons/NMI.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Chassis/Buttons/NMI.interface.yaml',  ],
     output: [ 'NMI.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Chassis/Buttons/NMI',
     ],
     build_by_default: true,
@@ -32,13 +32,13 @@
 subdir('Power')
 generated_others += custom_target(
     'xyz/openbmc_project/Chassis/Buttons/Power__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Chassis/Buttons/Power.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Chassis/Buttons/Power.interface.yaml',  ],
     output: [ 'Power.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Chassis/Buttons/Power',
     ],
     build_by_default: true,
@@ -47,13 +47,13 @@
 subdir('Reset')
 generated_others += custom_target(
     'xyz/openbmc_project/Chassis/Buttons/Reset__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Chassis/Buttons/Reset.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Chassis/Buttons/Reset.interface.yaml',  ],
     output: [ 'Reset.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Chassis/Buttons/Reset',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Chassis/Common/meson.build b/gen/xyz/openbmc_project/Chassis/Common/meson.build
index d7f3c91..c3f00ec 100644
--- a/gen/xyz/openbmc_project/Chassis/Common/meson.build
+++ b/gen/xyz/openbmc_project/Chassis/Common/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Chassis/Common__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Chassis/Common.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Chassis/Common.errors.yaml',  ],
     output: [ 'error.cpp', 'error.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Chassis/Common',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Chassis/Control/NMISource/meson.build b/gen/xyz/openbmc_project/Chassis/Control/NMISource/meson.build
index 227ae6c..ce3127f 100644
--- a/gen/xyz/openbmc_project/Chassis/Control/NMISource/meson.build
+++ b/gen/xyz/openbmc_project/Chassis/Control/NMISource/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Chassis/Control/NMISource__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Chassis/Control/NMISource.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Chassis/Control/NMISource.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Chassis/Control/NMISource',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Chassis/Control/Power/meson.build b/gen/xyz/openbmc_project/Chassis/Control/Power/meson.build
index ac39308..2500cdc 100644
--- a/gen/xyz/openbmc_project/Chassis/Control/Power/meson.build
+++ b/gen/xyz/openbmc_project/Chassis/Control/Power/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Chassis/Control/Power__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Chassis/Control/Power.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Chassis/Control/Power.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Chassis/Control/Power',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Chassis/Control/meson.build b/gen/xyz/openbmc_project/Chassis/Control/meson.build
index efd94c9..4538278 100644
--- a/gen/xyz/openbmc_project/Chassis/Control/meson.build
+++ b/gen/xyz/openbmc_project/Chassis/Control/meson.build
@@ -2,13 +2,13 @@
 subdir('NMISource')
 generated_others += custom_target(
     'xyz/openbmc_project/Chassis/Control/NMISource__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Chassis/Control/NMISource.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Chassis/Control/NMISource.interface.yaml',  ],
     output: [ 'NMISource.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Chassis/Control/NMISource',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('Power')
 generated_others += custom_target(
     'xyz/openbmc_project/Chassis/Control/Power__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Chassis/Control/Power.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Chassis/Control/Power.interface.yaml',  ],
     output: [ 'Power.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Chassis/Control/Power',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Chassis/Intrusion/meson.build b/gen/xyz/openbmc_project/Chassis/Intrusion/meson.build
index aea9e2e..a76d026 100644
--- a/gen/xyz/openbmc_project/Chassis/Intrusion/meson.build
+++ b/gen/xyz/openbmc_project/Chassis/Intrusion/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Chassis/Intrusion__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Chassis/Intrusion.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Chassis/Intrusion.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Chassis/Intrusion',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Chassis/meson.build b/gen/xyz/openbmc_project/Chassis/meson.build
index 94d02c0..e897d23 100644
--- a/gen/xyz/openbmc_project/Chassis/meson.build
+++ b/gen/xyz/openbmc_project/Chassis/meson.build
@@ -3,13 +3,13 @@
 subdir('Common')
 generated_others += custom_target(
     'xyz/openbmc_project/Chassis/Common__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Chassis/Common.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Chassis/Common.errors.yaml',  ],
     output: [ 'Common.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Chassis/Common',
     ],
     build_by_default: true,
@@ -19,13 +19,13 @@
 subdir('Intrusion')
 generated_others += custom_target(
     'xyz/openbmc_project/Chassis/Intrusion__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Chassis/Intrusion.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Chassis/Intrusion.interface.yaml',  ],
     output: [ 'Intrusion.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Chassis/Intrusion',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Collection/DeleteAll/meson.build b/gen/xyz/openbmc_project/Collection/DeleteAll/meson.build
index c60a0be..aab2dd7 100644
--- a/gen/xyz/openbmc_project/Collection/DeleteAll/meson.build
+++ b/gen/xyz/openbmc_project/Collection/DeleteAll/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Collection/DeleteAll__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Collection/DeleteAll.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Collection/DeleteAll.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Collection/DeleteAll',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Collection/meson.build b/gen/xyz/openbmc_project/Collection/meson.build
index a7edb86..deb5fe1 100644
--- a/gen/xyz/openbmc_project/Collection/meson.build
+++ b/gen/xyz/openbmc_project/Collection/meson.build
@@ -2,13 +2,13 @@
 subdir('DeleteAll')
 generated_others += custom_target(
     'xyz/openbmc_project/Collection/DeleteAll__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Collection/DeleteAll.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Collection/DeleteAll.interface.yaml',  ],
     output: [ 'DeleteAll.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Collection/DeleteAll',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Common/Callout/meson.build b/gen/xyz/openbmc_project/Common/Callout/meson.build
index f3d63c7..23a7e25 100644
--- a/gen/xyz/openbmc_project/Common/Callout/meson.build
+++ b/gen/xyz/openbmc_project/Common/Callout/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Common/Callout__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Common/Callout.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Common/Callout.errors.yaml',  ],
     output: [ 'error.cpp', 'error.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Common/Callout',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Common/Device/meson.build b/gen/xyz/openbmc_project/Common/Device/meson.build
index 60f7acf..b734362 100644
--- a/gen/xyz/openbmc_project/Common/Device/meson.build
+++ b/gen/xyz/openbmc_project/Common/Device/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Common/Device__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Common/Device.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Common/Device.errors.yaml',  ],
     output: [ 'error.cpp', 'error.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Common/Device',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Common/FactoryReset/meson.build b/gen/xyz/openbmc_project/Common/FactoryReset/meson.build
index 9bfd3cb..2d06e07 100644
--- a/gen/xyz/openbmc_project/Common/FactoryReset/meson.build
+++ b/gen/xyz/openbmc_project/Common/FactoryReset/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Common/FactoryReset__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Common/FactoryReset.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Common/FactoryReset.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Common/FactoryReset',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Common/File/meson.build b/gen/xyz/openbmc_project/Common/File/meson.build
index d0ab261..405f245 100644
--- a/gen/xyz/openbmc_project/Common/File/meson.build
+++ b/gen/xyz/openbmc_project/Common/File/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Common/File__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Common/File.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Common/File.errors.yaml',  ],
     output: [ 'error.cpp', 'error.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Common/File',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Common/FilePath/meson.build b/gen/xyz/openbmc_project/Common/FilePath/meson.build
index adde85c..382fd79 100644
--- a/gen/xyz/openbmc_project/Common/FilePath/meson.build
+++ b/gen/xyz/openbmc_project/Common/FilePath/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Common/FilePath__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Common/FilePath.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Common/FilePath.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Common/FilePath',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Common/ObjectPath/meson.build b/gen/xyz/openbmc_project/Common/ObjectPath/meson.build
index 284248f..2c23557 100644
--- a/gen/xyz/openbmc_project/Common/ObjectPath/meson.build
+++ b/gen/xyz/openbmc_project/Common/ObjectPath/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Common/ObjectPath__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Common/ObjectPath.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Common/ObjectPath.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Common/ObjectPath',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Common/Progress/meson.build b/gen/xyz/openbmc_project/Common/Progress/meson.build
index 97e7a77..15b3fee 100644
--- a/gen/xyz/openbmc_project/Common/Progress/meson.build
+++ b/gen/xyz/openbmc_project/Common/Progress/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Common/Progress__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Common/Progress.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Common/Progress.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Common/Progress',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Common/TFTP/meson.build b/gen/xyz/openbmc_project/Common/TFTP/meson.build
index ceeadf2..3ed7f9a 100644
--- a/gen/xyz/openbmc_project/Common/TFTP/meson.build
+++ b/gen/xyz/openbmc_project/Common/TFTP/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Common/TFTP__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Common/TFTP.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Common/TFTP.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Common/TFTP',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Common/UUID/meson.build b/gen/xyz/openbmc_project/Common/UUID/meson.build
index 7ef4c39..5071434 100644
--- a/gen/xyz/openbmc_project/Common/UUID/meson.build
+++ b/gen/xyz/openbmc_project/Common/UUID/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Common/UUID__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Common/UUID.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Common/UUID.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Common/UUID',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Common/meson.build b/gen/xyz/openbmc_project/Common/meson.build
index f35e3ad..d1a806c 100644
--- a/gen/xyz/openbmc_project/Common/meson.build
+++ b/gen/xyz/openbmc_project/Common/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Common__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Common.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Common.errors.yaml',  ],
     output: [ 'error.cpp', 'error.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Common',
     ],
 )
@@ -15,13 +15,13 @@
 subdir('Callout')
 generated_others += custom_target(
     'xyz/openbmc_project/Common/Callout__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Common/Callout.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Common/Callout.errors.yaml',  ],
     output: [ 'Callout.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Common/Callout',
     ],
     build_by_default: true,
@@ -30,13 +30,13 @@
 subdir('Device')
 generated_others += custom_target(
     'xyz/openbmc_project/Common/Device__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Common/Device.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Common/Device.errors.yaml',  ],
     output: [ 'Device.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Common/Device',
     ],
     build_by_default: true,
@@ -45,13 +45,13 @@
 subdir('FactoryReset')
 generated_others += custom_target(
     'xyz/openbmc_project/Common/FactoryReset__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Common/FactoryReset.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Common/FactoryReset.interface.yaml',  ],
     output: [ 'FactoryReset.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Common/FactoryReset',
     ],
     build_by_default: true,
@@ -60,13 +60,13 @@
 subdir('File')
 generated_others += custom_target(
     'xyz/openbmc_project/Common/File__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Common/File.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Common/File.errors.yaml',  ],
     output: [ 'File.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Common/File',
     ],
     build_by_default: true,
@@ -75,13 +75,13 @@
 subdir('FilePath')
 generated_others += custom_target(
     'xyz/openbmc_project/Common/FilePath__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Common/FilePath.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Common/FilePath.interface.yaml',  ],
     output: [ 'FilePath.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Common/FilePath',
     ],
     build_by_default: true,
@@ -90,13 +90,13 @@
 subdir('ObjectPath')
 generated_others += custom_target(
     'xyz/openbmc_project/Common/ObjectPath__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Common/ObjectPath.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Common/ObjectPath.interface.yaml',  ],
     output: [ 'ObjectPath.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Common/ObjectPath',
     ],
     build_by_default: true,
@@ -105,13 +105,13 @@
 subdir('Progress')
 generated_others += custom_target(
     'xyz/openbmc_project/Common/Progress__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Common/Progress.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Common/Progress.interface.yaml',  ],
     output: [ 'Progress.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Common/Progress',
     ],
     build_by_default: true,
@@ -120,13 +120,13 @@
 subdir('TFTP')
 generated_others += custom_target(
     'xyz/openbmc_project/Common/TFTP__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Common/TFTP.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Common/TFTP.interface.yaml',  ],
     output: [ 'TFTP.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Common/TFTP',
     ],
     build_by_default: true,
@@ -135,13 +135,13 @@
 subdir('UUID')
 generated_others += custom_target(
     'xyz/openbmc_project/Common/UUID__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Common/UUID.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Common/UUID.interface.yaml',  ],
     output: [ 'UUID.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Common/UUID',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Control/Boot/Mode/meson.build b/gen/xyz/openbmc_project/Control/Boot/Mode/meson.build
index b2f1dcd..1eab546 100644
--- a/gen/xyz/openbmc_project/Control/Boot/Mode/meson.build
+++ b/gen/xyz/openbmc_project/Control/Boot/Mode/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/Boot/Mode__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Boot/Mode.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Boot/Mode.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Boot/Mode',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/Boot/RebootAttempts/meson.build b/gen/xyz/openbmc_project/Control/Boot/RebootAttempts/meson.build
index f5d3f6d..aea30bc 100644
--- a/gen/xyz/openbmc_project/Control/Boot/RebootAttempts/meson.build
+++ b/gen/xyz/openbmc_project/Control/Boot/RebootAttempts/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/Boot/RebootAttempts__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Boot/RebootAttempts.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Boot/RebootAttempts.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Boot/RebootAttempts',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/Boot/RebootPolicy/meson.build b/gen/xyz/openbmc_project/Control/Boot/RebootPolicy/meson.build
index 7f7a031..e0d792b 100644
--- a/gen/xyz/openbmc_project/Control/Boot/RebootPolicy/meson.build
+++ b/gen/xyz/openbmc_project/Control/Boot/RebootPolicy/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/Boot/RebootPolicy__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Boot/RebootPolicy.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Boot/RebootPolicy.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Boot/RebootPolicy',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/Boot/Source/meson.build b/gen/xyz/openbmc_project/Control/Boot/Source/meson.build
index f81ad1c..37adcd9 100644
--- a/gen/xyz/openbmc_project/Control/Boot/Source/meson.build
+++ b/gen/xyz/openbmc_project/Control/Boot/Source/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/Boot/Source__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Boot/Source.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Boot/Source.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Boot/Source',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/Boot/Type/meson.build b/gen/xyz/openbmc_project/Control/Boot/Type/meson.build
index d1c68b5..8b242cc 100644
--- a/gen/xyz/openbmc_project/Control/Boot/Type/meson.build
+++ b/gen/xyz/openbmc_project/Control/Boot/Type/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/Boot/Type__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Boot/Type.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Boot/Type.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Boot/Type',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/Boot/meson.build b/gen/xyz/openbmc_project/Control/Boot/meson.build
index 2248771..548dbfa 100644
--- a/gen/xyz/openbmc_project/Control/Boot/meson.build
+++ b/gen/xyz/openbmc_project/Control/Boot/meson.build
@@ -2,13 +2,13 @@
 subdir('Mode')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/Boot/Mode__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Boot/Mode.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Boot/Mode.interface.yaml',  ],
     output: [ 'Mode.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Boot/Mode',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('RebootAttempts')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/Boot/RebootAttempts__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Boot/RebootAttempts.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Boot/RebootAttempts.interface.yaml',  ],
     output: [ 'RebootAttempts.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Boot/RebootAttempts',
     ],
     build_by_default: true,
@@ -32,13 +32,13 @@
 subdir('RebootPolicy')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/Boot/RebootPolicy__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Boot/RebootPolicy.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Boot/RebootPolicy.interface.yaml',  ],
     output: [ 'RebootPolicy.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Boot/RebootPolicy',
     ],
     build_by_default: true,
@@ -47,13 +47,13 @@
 subdir('Source')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/Boot/Source__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Boot/Source.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Boot/Source.interface.yaml',  ],
     output: [ 'Source.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Boot/Source',
     ],
     build_by_default: true,
@@ -62,13 +62,13 @@
 subdir('Type')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/Boot/Type__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Boot/Type.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Boot/Type.interface.yaml',  ],
     output: [ 'Type.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Boot/Type',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Control/CFMLimit/meson.build b/gen/xyz/openbmc_project/Control/CFMLimit/meson.build
index 83d2ead..8d95145 100644
--- a/gen/xyz/openbmc_project/Control/CFMLimit/meson.build
+++ b/gen/xyz/openbmc_project/Control/CFMLimit/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/CFMLimit__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/CFMLimit.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/CFMLimit.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/CFMLimit',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/ChassisCapabilities/meson.build b/gen/xyz/openbmc_project/Control/ChassisCapabilities/meson.build
index 67fa4d4..7e5355e 100644
--- a/gen/xyz/openbmc_project/Control/ChassisCapabilities/meson.build
+++ b/gen/xyz/openbmc_project/Control/ChassisCapabilities/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/ChassisCapabilities__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/ChassisCapabilities.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/ChassisCapabilities.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/ChassisCapabilities',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/Device/meson.build b/gen/xyz/openbmc_project/Control/Device/meson.build
index fe6a73a..788de8c 100644
--- a/gen/xyz/openbmc_project/Control/Device/meson.build
+++ b/gen/xyz/openbmc_project/Control/Device/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/Device__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Device.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Device.errors.yaml',  ],
     output: [ 'error.cpp', 'error.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Device',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/FanPwm/meson.build b/gen/xyz/openbmc_project/Control/FanPwm/meson.build
index eff6621..5a89a79 100644
--- a/gen/xyz/openbmc_project/Control/FanPwm/meson.build
+++ b/gen/xyz/openbmc_project/Control/FanPwm/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/FanPwm__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/FanPwm.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/FanPwm.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/FanPwm',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/FanRedundancy/meson.build b/gen/xyz/openbmc_project/Control/FanRedundancy/meson.build
index 4022ef4..6637fc5 100644
--- a/gen/xyz/openbmc_project/Control/FanRedundancy/meson.build
+++ b/gen/xyz/openbmc_project/Control/FanRedundancy/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/FanRedundancy__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/FanRedundancy.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/FanRedundancy.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/FanRedundancy',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/FanSpeed/meson.build b/gen/xyz/openbmc_project/Control/FanSpeed/meson.build
index b6b953e..b390aa9 100644
--- a/gen/xyz/openbmc_project/Control/FanSpeed/meson.build
+++ b/gen/xyz/openbmc_project/Control/FanSpeed/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/FanSpeed__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/FanSpeed.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/FanSpeed.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/FanSpeed',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/FieldMode/meson.build b/gen/xyz/openbmc_project/Control/FieldMode/meson.build
index 109d636..43d2572 100644
--- a/gen/xyz/openbmc_project/Control/FieldMode/meson.build
+++ b/gen/xyz/openbmc_project/Control/FieldMode/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/FieldMode__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/FieldMode.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/FieldMode.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/FieldMode',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/Host/NMI/meson.build b/gen/xyz/openbmc_project/Control/Host/NMI/meson.build
index 60b609c..090a89c 100644
--- a/gen/xyz/openbmc_project/Control/Host/NMI/meson.build
+++ b/gen/xyz/openbmc_project/Control/Host/NMI/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/Host/NMI__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Host/NMI.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Host/NMI.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Host/NMI',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/Host/TurboAllowed/meson.build b/gen/xyz/openbmc_project/Control/Host/TurboAllowed/meson.build
index 9d47361..c573166 100644
--- a/gen/xyz/openbmc_project/Control/Host/TurboAllowed/meson.build
+++ b/gen/xyz/openbmc_project/Control/Host/TurboAllowed/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/Host/TurboAllowed__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Host/TurboAllowed.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Host/TurboAllowed.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Host/TurboAllowed',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/Host/meson.build b/gen/xyz/openbmc_project/Control/Host/meson.build
index 1803d1c..f70c83d 100644
--- a/gen/xyz/openbmc_project/Control/Host/meson.build
+++ b/gen/xyz/openbmc_project/Control/Host/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/Host__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Host.errors.yaml', meson.source_root() / 'xyz/openbmc_project/Control/Host.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Host.errors.yaml', meson.project_source_root() / 'xyz/openbmc_project/Control/Host.interface.yaml',  ],
     output: [ 'error.cpp', 'error.hpp', 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Host',
     ],
 )
@@ -15,13 +15,13 @@
 subdir('NMI')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/Host/NMI__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Host/NMI.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Host/NMI.interface.yaml',  ],
     output: [ 'NMI.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Host/NMI',
     ],
     build_by_default: true,
@@ -30,13 +30,13 @@
 subdir('TurboAllowed')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/Host/TurboAllowed__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Host/TurboAllowed.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Host/TurboAllowed.interface.yaml',  ],
     output: [ 'TurboAllowed.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Host/TurboAllowed',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Control/MinimumShipLevel/meson.build b/gen/xyz/openbmc_project/Control/MinimumShipLevel/meson.build
index b221048..12ca4a6 100644
--- a/gen/xyz/openbmc_project/Control/MinimumShipLevel/meson.build
+++ b/gen/xyz/openbmc_project/Control/MinimumShipLevel/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/MinimumShipLevel__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/MinimumShipLevel.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/MinimumShipLevel.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/MinimumShipLevel',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/Mode/meson.build b/gen/xyz/openbmc_project/Control/Mode/meson.build
index 9528f92..e4f9a7a 100644
--- a/gen/xyz/openbmc_project/Control/Mode/meson.build
+++ b/gen/xyz/openbmc_project/Control/Mode/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/Mode__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Mode.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Mode.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Mode',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/Power/ACPIPowerState/meson.build b/gen/xyz/openbmc_project/Control/Power/ACPIPowerState/meson.build
index 726563c..bdb2919 100644
--- a/gen/xyz/openbmc_project/Control/Power/ACPIPowerState/meson.build
+++ b/gen/xyz/openbmc_project/Control/Power/ACPIPowerState/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/Power/ACPIPowerState__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Power/ACPIPowerState.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Power/ACPIPowerState.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Power/ACPIPowerState',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/Power/Cap/meson.build b/gen/xyz/openbmc_project/Control/Power/Cap/meson.build
index ef401bf..d96d5f9 100644
--- a/gen/xyz/openbmc_project/Control/Power/Cap/meson.build
+++ b/gen/xyz/openbmc_project/Control/Power/Cap/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/Power/Cap__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Power/Cap.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Power/Cap.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Power/Cap',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/Power/RestorePolicy/meson.build b/gen/xyz/openbmc_project/Control/Power/RestorePolicy/meson.build
index bb18e25..e88c3ed 100644
--- a/gen/xyz/openbmc_project/Control/Power/RestorePolicy/meson.build
+++ b/gen/xyz/openbmc_project/Control/Power/RestorePolicy/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/Power/RestorePolicy__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Power/RestorePolicy.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Power/RestorePolicy.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Power/RestorePolicy',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/Power/meson.build b/gen/xyz/openbmc_project/Control/Power/meson.build
index 05628ec..165bf98 100644
--- a/gen/xyz/openbmc_project/Control/Power/meson.build
+++ b/gen/xyz/openbmc_project/Control/Power/meson.build
@@ -2,13 +2,13 @@
 subdir('ACPIPowerState')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/Power/ACPIPowerState__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Power/ACPIPowerState.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Power/ACPIPowerState.interface.yaml',  ],
     output: [ 'ACPIPowerState.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Power/ACPIPowerState',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('Cap')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/Power/Cap__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Power/Cap.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Power/Cap.interface.yaml',  ],
     output: [ 'Cap.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Power/Cap',
     ],
     build_by_default: true,
@@ -32,13 +32,13 @@
 subdir('RestorePolicy')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/Power/RestorePolicy__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Power/RestorePolicy.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Power/RestorePolicy.interface.yaml',  ],
     output: [ 'RestorePolicy.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Power/RestorePolicy',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Control/PowerSupplyAttributes/meson.build b/gen/xyz/openbmc_project/Control/PowerSupplyAttributes/meson.build
index 8961301..302cc66 100644
--- a/gen/xyz/openbmc_project/Control/PowerSupplyAttributes/meson.build
+++ b/gen/xyz/openbmc_project/Control/PowerSupplyAttributes/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/PowerSupplyAttributes__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/PowerSupplyAttributes.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/PowerSupplyAttributes.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/PowerSupplyAttributes',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/PowerSupplyRedundancy/meson.build b/gen/xyz/openbmc_project/Control/PowerSupplyRedundancy/meson.build
index cd2ab86..586f9b7 100644
--- a/gen/xyz/openbmc_project/Control/PowerSupplyRedundancy/meson.build
+++ b/gen/xyz/openbmc_project/Control/PowerSupplyRedundancy/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/PowerSupplyRedundancy__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/PowerSupplyRedundancy.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/PowerSupplyRedundancy.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/PowerSupplyRedundancy',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/Processor/CurrentOperatingConfig/meson.build b/gen/xyz/openbmc_project/Control/Processor/CurrentOperatingConfig/meson.build
index d8fcb7f..365741d 100644
--- a/gen/xyz/openbmc_project/Control/Processor/CurrentOperatingConfig/meson.build
+++ b/gen/xyz/openbmc_project/Control/Processor/CurrentOperatingConfig/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/Processor/CurrentOperatingConfig__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Processor/CurrentOperatingConfig.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Processor/CurrentOperatingConfig.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Processor/CurrentOperatingConfig',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/Processor/meson.build b/gen/xyz/openbmc_project/Control/Processor/meson.build
index adbff0a..82e1b3b 100644
--- a/gen/xyz/openbmc_project/Control/Processor/meson.build
+++ b/gen/xyz/openbmc_project/Control/Processor/meson.build
@@ -2,13 +2,13 @@
 subdir('CurrentOperatingConfig')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/Processor/CurrentOperatingConfig__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Processor/CurrentOperatingConfig.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Processor/CurrentOperatingConfig.interface.yaml',  ],
     output: [ 'CurrentOperatingConfig.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Processor/CurrentOperatingConfig',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Control/Security/RestrictionMode/meson.build b/gen/xyz/openbmc_project/Control/Security/RestrictionMode/meson.build
index 831a7fa..6368c07 100644
--- a/gen/xyz/openbmc_project/Control/Security/RestrictionMode/meson.build
+++ b/gen/xyz/openbmc_project/Control/Security/RestrictionMode/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/Security/RestrictionMode__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Security/RestrictionMode.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Security/RestrictionMode.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Security/RestrictionMode',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/Security/SpecialMode/meson.build b/gen/xyz/openbmc_project/Control/Security/SpecialMode/meson.build
index 333bbc7..9411fee 100644
--- a/gen/xyz/openbmc_project/Control/Security/SpecialMode/meson.build
+++ b/gen/xyz/openbmc_project/Control/Security/SpecialMode/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/Security/SpecialMode__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Security/SpecialMode.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Security/SpecialMode.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Security/SpecialMode',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/Security/meson.build b/gen/xyz/openbmc_project/Control/Security/meson.build
index f37c2dc..374713b 100644
--- a/gen/xyz/openbmc_project/Control/Security/meson.build
+++ b/gen/xyz/openbmc_project/Control/Security/meson.build
@@ -2,13 +2,13 @@
 subdir('RestrictionMode')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/Security/RestrictionMode__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Security/RestrictionMode.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Security/RestrictionMode.interface.yaml',  ],
     output: [ 'RestrictionMode.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Security/RestrictionMode',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('SpecialMode')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/Security/SpecialMode__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Security/SpecialMode.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Security/SpecialMode.interface.yaml',  ],
     output: [ 'SpecialMode.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Security/SpecialMode',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Control/Service/Attributes/meson.build b/gen/xyz/openbmc_project/Control/Service/Attributes/meson.build
index bc00d4b..b2ae6ac 100644
--- a/gen/xyz/openbmc_project/Control/Service/Attributes/meson.build
+++ b/gen/xyz/openbmc_project/Control/Service/Attributes/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/Service/Attributes__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Service/Attributes.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Service/Attributes.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Service/Attributes',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/Service/SocketAttributes/meson.build b/gen/xyz/openbmc_project/Control/Service/SocketAttributes/meson.build
index 6846816..9ed9132 100644
--- a/gen/xyz/openbmc_project/Control/Service/SocketAttributes/meson.build
+++ b/gen/xyz/openbmc_project/Control/Service/SocketAttributes/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/Service/SocketAttributes__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Service/SocketAttributes.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Service/SocketAttributes.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Service/SocketAttributes',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/Service/meson.build b/gen/xyz/openbmc_project/Control/Service/meson.build
index 9514c52..0767f35 100644
--- a/gen/xyz/openbmc_project/Control/Service/meson.build
+++ b/gen/xyz/openbmc_project/Control/Service/meson.build
@@ -2,13 +2,13 @@
 subdir('Attributes')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/Service/Attributes__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Service/Attributes.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Service/Attributes.interface.yaml',  ],
     output: [ 'Attributes.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Service/Attributes',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('SocketAttributes')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/Service/SocketAttributes__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Service/SocketAttributes.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Service/SocketAttributes.interface.yaml',  ],
     output: [ 'SocketAttributes.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Service/SocketAttributes',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Control/TPM/Policy/meson.build b/gen/xyz/openbmc_project/Control/TPM/Policy/meson.build
index b4d5075..b4f2b78 100644
--- a/gen/xyz/openbmc_project/Control/TPM/Policy/meson.build
+++ b/gen/xyz/openbmc_project/Control/TPM/Policy/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/TPM/Policy__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/TPM/Policy.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/TPM/Policy.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/TPM/Policy',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/TPM/meson.build b/gen/xyz/openbmc_project/Control/TPM/meson.build
index 07073ad..1791288 100644
--- a/gen/xyz/openbmc_project/Control/TPM/meson.build
+++ b/gen/xyz/openbmc_project/Control/TPM/meson.build
@@ -2,13 +2,13 @@
 subdir('Policy')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/TPM/Policy__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/TPM/Policy.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/TPM/Policy.interface.yaml',  ],
     output: [ 'Policy.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/TPM/Policy',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Control/ThermalMode/meson.build b/gen/xyz/openbmc_project/Control/ThermalMode/meson.build
index c18912a..5000dab 100644
--- a/gen/xyz/openbmc_project/Control/ThermalMode/meson.build
+++ b/gen/xyz/openbmc_project/Control/ThermalMode/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/ThermalMode__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/ThermalMode.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/ThermalMode.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/ThermalMode',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/VoltageRegulatorControl/meson.build b/gen/xyz/openbmc_project/Control/VoltageRegulatorControl/meson.build
index c3f4309..aa6b57e 100644
--- a/gen/xyz/openbmc_project/Control/VoltageRegulatorControl/meson.build
+++ b/gen/xyz/openbmc_project/Control/VoltageRegulatorControl/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/VoltageRegulatorControl__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/VoltageRegulatorControl.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/VoltageRegulatorControl.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/VoltageRegulatorControl',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/VoltageRegulatorMode/meson.build b/gen/xyz/openbmc_project/Control/VoltageRegulatorMode/meson.build
index c67bfd8..10012bd 100644
--- a/gen/xyz/openbmc_project/Control/VoltageRegulatorMode/meson.build
+++ b/gen/xyz/openbmc_project/Control/VoltageRegulatorMode/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/VoltageRegulatorMode__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/VoltageRegulatorMode.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/VoltageRegulatorMode.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/VoltageRegulatorMode',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Control/meson.build b/gen/xyz/openbmc_project/Control/meson.build
index 3dd83d4..c1f3d9d 100644
--- a/gen/xyz/openbmc_project/Control/meson.build
+++ b/gen/xyz/openbmc_project/Control/meson.build
@@ -3,13 +3,13 @@
 subdir('CFMLimit')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/CFMLimit__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/CFMLimit.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/CFMLimit.interface.yaml',  ],
     output: [ 'CFMLimit.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/CFMLimit',
     ],
     build_by_default: true,
@@ -18,13 +18,13 @@
 subdir('ChassisCapabilities')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/ChassisCapabilities__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/ChassisCapabilities.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/ChassisCapabilities.interface.yaml',  ],
     output: [ 'ChassisCapabilities.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/ChassisCapabilities',
     ],
     build_by_default: true,
@@ -33,13 +33,13 @@
 subdir('Device')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/Device__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Device.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Device.errors.yaml',  ],
     output: [ 'Device.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Device',
     ],
     build_by_default: true,
@@ -48,13 +48,13 @@
 subdir('FanPwm')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/FanPwm__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/FanPwm.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/FanPwm.interface.yaml',  ],
     output: [ 'FanPwm.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/FanPwm',
     ],
     build_by_default: true,
@@ -63,13 +63,13 @@
 subdir('FanRedundancy')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/FanRedundancy__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/FanRedundancy.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/FanRedundancy.interface.yaml',  ],
     output: [ 'FanRedundancy.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/FanRedundancy',
     ],
     build_by_default: true,
@@ -78,13 +78,13 @@
 subdir('FanSpeed')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/FanSpeed__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/FanSpeed.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/FanSpeed.interface.yaml',  ],
     output: [ 'FanSpeed.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/FanSpeed',
     ],
     build_by_default: true,
@@ -93,13 +93,13 @@
 subdir('FieldMode')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/FieldMode__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/FieldMode.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/FieldMode.interface.yaml',  ],
     output: [ 'FieldMode.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/FieldMode',
     ],
     build_by_default: true,
@@ -108,13 +108,13 @@
 subdir('Host')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/Host__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Host.errors.yaml', meson.source_root() / 'xyz/openbmc_project/Control/Host.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Host.errors.yaml', meson.project_source_root() / 'xyz/openbmc_project/Control/Host.interface.yaml',  ],
     output: [ 'Host.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Host',
     ],
     build_by_default: true,
@@ -123,13 +123,13 @@
 subdir('MinimumShipLevel')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/MinimumShipLevel__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/MinimumShipLevel.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/MinimumShipLevel.interface.yaml',  ],
     output: [ 'MinimumShipLevel.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/MinimumShipLevel',
     ],
     build_by_default: true,
@@ -138,13 +138,13 @@
 subdir('Mode')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/Mode__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/Mode.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/Mode.interface.yaml',  ],
     output: [ 'Mode.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/Mode',
     ],
     build_by_default: true,
@@ -154,13 +154,13 @@
 subdir('PowerSupplyAttributes')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/PowerSupplyAttributes__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/PowerSupplyAttributes.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/PowerSupplyAttributes.interface.yaml',  ],
     output: [ 'PowerSupplyAttributes.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/PowerSupplyAttributes',
     ],
     build_by_default: true,
@@ -169,13 +169,13 @@
 subdir('PowerSupplyRedundancy')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/PowerSupplyRedundancy__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/PowerSupplyRedundancy.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/PowerSupplyRedundancy.interface.yaml',  ],
     output: [ 'PowerSupplyRedundancy.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/PowerSupplyRedundancy',
     ],
     build_by_default: true,
@@ -188,13 +188,13 @@
 subdir('ThermalMode')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/ThermalMode__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/ThermalMode.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/ThermalMode.interface.yaml',  ],
     output: [ 'ThermalMode.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/ThermalMode',
     ],
     build_by_default: true,
@@ -203,13 +203,13 @@
 subdir('VoltageRegulatorControl')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/VoltageRegulatorControl__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/VoltageRegulatorControl.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/VoltageRegulatorControl.interface.yaml',  ],
     output: [ 'VoltageRegulatorControl.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/VoltageRegulatorControl',
     ],
     build_by_default: true,
@@ -218,13 +218,13 @@
 subdir('VoltageRegulatorMode')
 generated_others += custom_target(
     'xyz/openbmc_project/Control/VoltageRegulatorMode__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Control/VoltageRegulatorMode.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Control/VoltageRegulatorMode.interface.yaml',  ],
     output: [ 'VoltageRegulatorMode.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Control/VoltageRegulatorMode',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Dump/Create/meson.build b/gen/xyz/openbmc_project/Dump/Create/meson.build
index 92e1708..64f4094 100644
--- a/gen/xyz/openbmc_project/Dump/Create/meson.build
+++ b/gen/xyz/openbmc_project/Dump/Create/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Dump/Create__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Dump/Create.errors.yaml', meson.source_root() / 'xyz/openbmc_project/Dump/Create.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Dump/Create.errors.yaml', meson.project_source_root() / 'xyz/openbmc_project/Dump/Create.interface.yaml',  ],
     output: [ 'error.cpp', 'error.hpp', 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Dump/Create',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Dump/Entry/BMC/meson.build b/gen/xyz/openbmc_project/Dump/Entry/BMC/meson.build
index b2250b8..8690fb5 100644
--- a/gen/xyz/openbmc_project/Dump/Entry/BMC/meson.build
+++ b/gen/xyz/openbmc_project/Dump/Entry/BMC/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Dump/Entry/BMC__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Dump/Entry/BMC.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Dump/Entry/BMC.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Dump/Entry/BMC',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Dump/Entry/System/meson.build b/gen/xyz/openbmc_project/Dump/Entry/System/meson.build
index 40fc920..cd002b2 100644
--- a/gen/xyz/openbmc_project/Dump/Entry/System/meson.build
+++ b/gen/xyz/openbmc_project/Dump/Entry/System/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Dump/Entry/System__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Dump/Entry/System.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Dump/Entry/System.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Dump/Entry/System',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Dump/Entry/meson.build b/gen/xyz/openbmc_project/Dump/Entry/meson.build
index 9ef9c76..c85feef 100644
--- a/gen/xyz/openbmc_project/Dump/Entry/meson.build
+++ b/gen/xyz/openbmc_project/Dump/Entry/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Dump/Entry__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Dump/Entry.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Dump/Entry.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Dump/Entry',
     ],
 )
@@ -15,13 +15,13 @@
 subdir('BMC')
 generated_others += custom_target(
     'xyz/openbmc_project/Dump/Entry/BMC__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Dump/Entry/BMC.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Dump/Entry/BMC.interface.yaml',  ],
     output: [ 'BMC.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Dump/Entry/BMC',
     ],
     build_by_default: true,
@@ -30,13 +30,13 @@
 subdir('System')
 generated_others += custom_target(
     'xyz/openbmc_project/Dump/Entry/System__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Dump/Entry/System.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Dump/Entry/System.interface.yaml',  ],
     output: [ 'System.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Dump/Entry/System',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Dump/NewDump/meson.build b/gen/xyz/openbmc_project/Dump/NewDump/meson.build
index 42cc77e..2475a8e 100644
--- a/gen/xyz/openbmc_project/Dump/NewDump/meson.build
+++ b/gen/xyz/openbmc_project/Dump/NewDump/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Dump/NewDump__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Dump/NewDump.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Dump/NewDump.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Dump/NewDump',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Dump/meson.build b/gen/xyz/openbmc_project/Dump/meson.build
index cf6468c..4532b05 100644
--- a/gen/xyz/openbmc_project/Dump/meson.build
+++ b/gen/xyz/openbmc_project/Dump/meson.build
@@ -2,13 +2,13 @@
 subdir('Create')
 generated_others += custom_target(
     'xyz/openbmc_project/Dump/Create__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Dump/Create.errors.yaml', meson.source_root() / 'xyz/openbmc_project/Dump/Create.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Dump/Create.errors.yaml', meson.project_source_root() / 'xyz/openbmc_project/Dump/Create.interface.yaml',  ],
     output: [ 'Create.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Dump/Create',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('Entry')
 generated_others += custom_target(
     'xyz/openbmc_project/Dump/Entry__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Dump/Entry.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Dump/Entry.interface.yaml',  ],
     output: [ 'Entry.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Dump/Entry',
     ],
     build_by_default: true,
@@ -32,13 +32,13 @@
 subdir('NewDump')
 generated_others += custom_target(
     'xyz/openbmc_project/Dump/NewDump__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Dump/NewDump.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Dump/NewDump.interface.yaml',  ],
     output: [ 'NewDump.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Dump/NewDump',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Inventory/Decorator/Asset/meson.build b/gen/xyz/openbmc_project/Inventory/Decorator/Asset/meson.build
index 9b380e9..6ca2abb 100644
--- a/gen/xyz/openbmc_project/Inventory/Decorator/Asset/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Decorator/Asset/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Decorator/Asset__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Decorator/Asset.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Decorator/Asset.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Decorator/Asset',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Decorator/AssetTag/meson.build b/gen/xyz/openbmc_project/Inventory/Decorator/AssetTag/meson.build
index 6bbc39a..9e7af6e 100644
--- a/gen/xyz/openbmc_project/Inventory/Decorator/AssetTag/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Decorator/AssetTag/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Decorator/AssetTag__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Decorator/AssetTag.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Decorator/AssetTag.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Decorator/AssetTag',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Decorator/CLEI/meson.build b/gen/xyz/openbmc_project/Inventory/Decorator/CLEI/meson.build
index 46f18fc..8913226 100644
--- a/gen/xyz/openbmc_project/Inventory/Decorator/CLEI/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Decorator/CLEI/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Decorator/CLEI__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Decorator/CLEI.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Decorator/CLEI.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Decorator/CLEI',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Decorator/Cacheable/meson.build b/gen/xyz/openbmc_project/Inventory/Decorator/Cacheable/meson.build
index 9ead63f..e035dfe 100644
--- a/gen/xyz/openbmc_project/Inventory/Decorator/Cacheable/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Decorator/Cacheable/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Decorator/Cacheable__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Decorator/Cacheable.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Decorator/Cacheable.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Decorator/Cacheable',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Decorator/Compatible/meson.build b/gen/xyz/openbmc_project/Inventory/Decorator/Compatible/meson.build
index 1f708a9..47becde 100644
--- a/gen/xyz/openbmc_project/Inventory/Decorator/Compatible/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Decorator/Compatible/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Decorator/Compatible__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Decorator/Compatible.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Decorator/Compatible.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Decorator/Compatible',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Decorator/CoolingType/meson.build b/gen/xyz/openbmc_project/Inventory/Decorator/CoolingType/meson.build
index d810aa7..3761a88 100644
--- a/gen/xyz/openbmc_project/Inventory/Decorator/CoolingType/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Decorator/CoolingType/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Decorator/CoolingType__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Decorator/CoolingType.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Decorator/CoolingType.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Decorator/CoolingType',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Decorator/I2CDevice/meson.build b/gen/xyz/openbmc_project/Inventory/Decorator/I2CDevice/meson.build
index e4c3fd9..a643bc1 100644
--- a/gen/xyz/openbmc_project/Inventory/Decorator/I2CDevice/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Decorator/I2CDevice/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Decorator/I2CDevice__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Decorator/I2CDevice.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Decorator/I2CDevice.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Decorator/I2CDevice',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Decorator/LocationCode/meson.build b/gen/xyz/openbmc_project/Inventory/Decorator/LocationCode/meson.build
index f1da1fb..7b97fe7 100644
--- a/gen/xyz/openbmc_project/Inventory/Decorator/LocationCode/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Decorator/LocationCode/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Decorator/LocationCode__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Decorator/LocationCode.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Decorator/LocationCode.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Decorator/LocationCode',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Decorator/ManufacturerExt/meson.build b/gen/xyz/openbmc_project/Inventory/Decorator/ManufacturerExt/meson.build
index 5cd135d..65207b1 100644
--- a/gen/xyz/openbmc_project/Inventory/Decorator/ManufacturerExt/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Decorator/ManufacturerExt/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Decorator/ManufacturerExt__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Decorator/ManufacturerExt.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Decorator/ManufacturerExt.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Decorator/ManufacturerExt',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Decorator/MeetsMinimumShipLevel/meson.build b/gen/xyz/openbmc_project/Inventory/Decorator/MeetsMinimumShipLevel/meson.build
index 2527966..7ed2e7a 100644
--- a/gen/xyz/openbmc_project/Inventory/Decorator/MeetsMinimumShipLevel/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Decorator/MeetsMinimumShipLevel/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Decorator/MeetsMinimumShipLevel__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Decorator/MeetsMinimumShipLevel.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Decorator/MeetsMinimumShipLevel.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Decorator/MeetsMinimumShipLevel',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Decorator/Replaceable/meson.build b/gen/xyz/openbmc_project/Inventory/Decorator/Replaceable/meson.build
index 1af1f01..85cab83 100644
--- a/gen/xyz/openbmc_project/Inventory/Decorator/Replaceable/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Decorator/Replaceable/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Decorator/Replaceable__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Decorator/Replaceable.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Decorator/Replaceable.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Decorator/Replaceable',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Decorator/Revision/meson.build b/gen/xyz/openbmc_project/Inventory/Decorator/Revision/meson.build
index 9c9ce5e..40ff671 100644
--- a/gen/xyz/openbmc_project/Inventory/Decorator/Revision/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Decorator/Revision/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Decorator/Revision__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Decorator/Revision.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Decorator/Revision.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Decorator/Revision',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Decorator/VendorInformation/meson.build b/gen/xyz/openbmc_project/Inventory/Decorator/VendorInformation/meson.build
index df12fd6..9745193 100644
--- a/gen/xyz/openbmc_project/Inventory/Decorator/VendorInformation/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Decorator/VendorInformation/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Decorator/VendorInformation__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Decorator/VendorInformation.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Decorator/VendorInformation.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Decorator/VendorInformation',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Decorator/VoltageControl/meson.build b/gen/xyz/openbmc_project/Inventory/Decorator/VoltageControl/meson.build
index 3ba2fd9..704e0a6 100644
--- a/gen/xyz/openbmc_project/Inventory/Decorator/VoltageControl/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Decorator/VoltageControl/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Decorator/VoltageControl__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Decorator/VoltageControl.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Decorator/VoltageControl.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Decorator/VoltageControl',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Decorator/meson.build b/gen/xyz/openbmc_project/Inventory/Decorator/meson.build
index 7515bad..155bdb1 100644
--- a/gen/xyz/openbmc_project/Inventory/Decorator/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Decorator/meson.build
@@ -2,13 +2,13 @@
 subdir('Asset')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Decorator/Asset__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Decorator/Asset.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Decorator/Asset.interface.yaml',  ],
     output: [ 'Asset.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Decorator/Asset',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('AssetTag')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Decorator/AssetTag__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Decorator/AssetTag.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Decorator/AssetTag.interface.yaml',  ],
     output: [ 'AssetTag.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Decorator/AssetTag',
     ],
     build_by_default: true,
@@ -32,13 +32,13 @@
 subdir('CLEI')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Decorator/CLEI__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Decorator/CLEI.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Decorator/CLEI.interface.yaml',  ],
     output: [ 'CLEI.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Decorator/CLEI',
     ],
     build_by_default: true,
@@ -47,13 +47,13 @@
 subdir('Cacheable')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Decorator/Cacheable__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Decorator/Cacheable.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Decorator/Cacheable.interface.yaml',  ],
     output: [ 'Cacheable.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Decorator/Cacheable',
     ],
     build_by_default: true,
@@ -62,13 +62,13 @@
 subdir('Compatible')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Decorator/Compatible__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Decorator/Compatible.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Decorator/Compatible.interface.yaml',  ],
     output: [ 'Compatible.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Decorator/Compatible',
     ],
     build_by_default: true,
@@ -77,13 +77,13 @@
 subdir('CoolingType')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Decorator/CoolingType__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Decorator/CoolingType.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Decorator/CoolingType.interface.yaml',  ],
     output: [ 'CoolingType.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Decorator/CoolingType',
     ],
     build_by_default: true,
@@ -92,13 +92,13 @@
 subdir('I2CDevice')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Decorator/I2CDevice__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Decorator/I2CDevice.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Decorator/I2CDevice.interface.yaml',  ],
     output: [ 'I2CDevice.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Decorator/I2CDevice',
     ],
     build_by_default: true,
@@ -107,13 +107,13 @@
 subdir('LocationCode')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Decorator/LocationCode__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Decorator/LocationCode.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Decorator/LocationCode.interface.yaml',  ],
     output: [ 'LocationCode.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Decorator/LocationCode',
     ],
     build_by_default: true,
@@ -122,13 +122,13 @@
 subdir('ManufacturerExt')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Decorator/ManufacturerExt__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Decorator/ManufacturerExt.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Decorator/ManufacturerExt.interface.yaml',  ],
     output: [ 'ManufacturerExt.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Decorator/ManufacturerExt',
     ],
     build_by_default: true,
@@ -137,13 +137,13 @@
 subdir('MeetsMinimumShipLevel')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Decorator/MeetsMinimumShipLevel__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Decorator/MeetsMinimumShipLevel.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Decorator/MeetsMinimumShipLevel.interface.yaml',  ],
     output: [ 'MeetsMinimumShipLevel.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Decorator/MeetsMinimumShipLevel',
     ],
     build_by_default: true,
@@ -152,13 +152,13 @@
 subdir('Replaceable')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Decorator/Replaceable__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Decorator/Replaceable.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Decorator/Replaceable.interface.yaml',  ],
     output: [ 'Replaceable.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Decorator/Replaceable',
     ],
     build_by_default: true,
@@ -167,13 +167,13 @@
 subdir('Revision')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Decorator/Revision__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Decorator/Revision.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Decorator/Revision.interface.yaml',  ],
     output: [ 'Revision.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Decorator/Revision',
     ],
     build_by_default: true,
@@ -182,13 +182,13 @@
 subdir('VendorInformation')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Decorator/VendorInformation__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Decorator/VendorInformation.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Decorator/VendorInformation.interface.yaml',  ],
     output: [ 'VendorInformation.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Decorator/VendorInformation',
     ],
     build_by_default: true,
@@ -197,13 +197,13 @@
 subdir('VoltageControl')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Decorator/VoltageControl__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Decorator/VoltageControl.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Decorator/VoltageControl.interface.yaml',  ],
     output: [ 'VoltageControl.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Decorator/VoltageControl',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Inventory/Item/Accelerator/meson.build b/gen/xyz/openbmc_project/Inventory/Item/Accelerator/meson.build
index 3d2cb03..5bfbee7 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/Accelerator/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/Accelerator/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/Accelerator__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Accelerator.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Accelerator.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Accelerator',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Item/Battery/meson.build b/gen/xyz/openbmc_project/Inventory/Item/Battery/meson.build
index 64e6810..78e2166 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/Battery/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/Battery/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/Battery__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Battery.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Battery.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Battery',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Item/Bmc/meson.build b/gen/xyz/openbmc_project/Inventory/Item/Bmc/meson.build
index 9e1f2b0..7c303ae 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/Bmc/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/Bmc/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/Bmc__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Bmc.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Bmc.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Bmc',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Item/Board/IOBoard/meson.build b/gen/xyz/openbmc_project/Inventory/Item/Board/IOBoard/meson.build
index 3d129a6..17dacf4 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/Board/IOBoard/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/Board/IOBoard/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/Board/IOBoard__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Board/IOBoard.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Board/IOBoard.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Board/IOBoard',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Item/Board/Motherboard/meson.build b/gen/xyz/openbmc_project/Inventory/Item/Board/Motherboard/meson.build
index f9f07b6..05efecb 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/Board/Motherboard/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/Board/Motherboard/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/Board/Motherboard__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Board/Motherboard.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Board/Motherboard.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Board/Motherboard',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Item/Board/meson.build b/gen/xyz/openbmc_project/Inventory/Item/Board/meson.build
index fee40a6..d424d91 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/Board/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/Board/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/Board__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Board.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Board.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Board',
     ],
 )
@@ -15,13 +15,13 @@
 subdir('IOBoard')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/Board/IOBoard__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Board/IOBoard.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Board/IOBoard.interface.yaml',  ],
     output: [ 'IOBoard.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Board/IOBoard',
     ],
     build_by_default: true,
@@ -30,13 +30,13 @@
 subdir('Motherboard')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/Board/Motherboard__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Board/Motherboard.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Board/Motherboard.interface.yaml',  ],
     output: [ 'Motherboard.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Board/Motherboard',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Inventory/Item/Chassis/meson.build b/gen/xyz/openbmc_project/Inventory/Item/Chassis/meson.build
index 7de4dbe..c3e0145 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/Chassis/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/Chassis/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/Chassis__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Chassis.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Chassis.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Chassis',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Item/Connector/meson.build b/gen/xyz/openbmc_project/Inventory/Item/Connector/meson.build
index 8775c28..7c00b93 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/Connector/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/Connector/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/Connector__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Connector.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Connector.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Connector',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Item/Cpu/OperatingConfig/meson.build b/gen/xyz/openbmc_project/Inventory/Item/Cpu/OperatingConfig/meson.build
index 1ea9320..1c62853 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/Cpu/OperatingConfig/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/Cpu/OperatingConfig/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/Cpu/OperatingConfig__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Cpu/OperatingConfig.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Cpu/OperatingConfig.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Cpu/OperatingConfig',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Item/Cpu/meson.build b/gen/xyz/openbmc_project/Inventory/Item/Cpu/meson.build
index f7e145f..790e71e 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/Cpu/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/Cpu/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/Cpu__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Cpu.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Cpu.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Cpu',
     ],
 )
@@ -15,13 +15,13 @@
 subdir('OperatingConfig')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/Cpu/OperatingConfig__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Cpu/OperatingConfig.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Cpu/OperatingConfig.interface.yaml',  ],
     output: [ 'OperatingConfig.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Cpu/OperatingConfig',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Inventory/Item/CpuCore/meson.build b/gen/xyz/openbmc_project/Inventory/Item/CpuCore/meson.build
index 4a20bf4..28fa914 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/CpuCore/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/CpuCore/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/CpuCore__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/CpuCore.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/CpuCore.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/CpuCore',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Item/Dimm/MemoryLocation/meson.build b/gen/xyz/openbmc_project/Inventory/Item/Dimm/MemoryLocation/meson.build
index 508ecd5..469bb2d 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/Dimm/MemoryLocation/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/Dimm/MemoryLocation/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/Dimm/MemoryLocation__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Dimm/MemoryLocation.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Dimm/MemoryLocation.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Dimm/MemoryLocation',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Item/Dimm/meson.build b/gen/xyz/openbmc_project/Inventory/Item/Dimm/meson.build
index c2e0fcb..85c00d9 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/Dimm/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/Dimm/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/Dimm__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Dimm.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Dimm.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Dimm',
     ],
 )
@@ -15,13 +15,13 @@
 subdir('MemoryLocation')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/Dimm/MemoryLocation__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Dimm/MemoryLocation.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Dimm/MemoryLocation.interface.yaml',  ],
     output: [ 'MemoryLocation.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Dimm/MemoryLocation',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Inventory/Item/DiskBackplane/meson.build b/gen/xyz/openbmc_project/Inventory/Item/DiskBackplane/meson.build
index 0adab72..73e586a 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/DiskBackplane/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/DiskBackplane/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/DiskBackplane__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/DiskBackplane.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/DiskBackplane.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/DiskBackplane',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Item/Ethernet/meson.build b/gen/xyz/openbmc_project/Inventory/Item/Ethernet/meson.build
index bb8f0ac..e8da770 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/Ethernet/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/Ethernet/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/Ethernet__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Ethernet.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Ethernet.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Ethernet',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Item/FabricAdapter/meson.build b/gen/xyz/openbmc_project/Inventory/Item/FabricAdapter/meson.build
index cb445ac..79f19ef 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/FabricAdapter/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/FabricAdapter/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/FabricAdapter__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/FabricAdapter.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/FabricAdapter.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/FabricAdapter',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Item/Fan/meson.build b/gen/xyz/openbmc_project/Inventory/Item/Fan/meson.build
index d4a1fe7..6c2d5da 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/Fan/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/Fan/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/Fan__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Fan.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Fan.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Fan',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Item/Global/meson.build b/gen/xyz/openbmc_project/Inventory/Item/Global/meson.build
index 618b464..d78b78b 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/Global/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/Global/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/Global__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Global.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Global.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Global',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Item/MemoryBuffer/meson.build b/gen/xyz/openbmc_project/Inventory/Item/MemoryBuffer/meson.build
index 391c497..c3ffd0f 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/MemoryBuffer/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/MemoryBuffer/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/MemoryBuffer__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/MemoryBuffer.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/MemoryBuffer.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/MemoryBuffer',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Item/NetworkInterface/meson.build b/gen/xyz/openbmc_project/Inventory/Item/NetworkInterface/meson.build
index 978f423..0c0c5f4 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/NetworkInterface/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/NetworkInterface/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/NetworkInterface__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/NetworkInterface.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/NetworkInterface.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/NetworkInterface',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Item/PCIeDevice/meson.build b/gen/xyz/openbmc_project/Inventory/Item/PCIeDevice/meson.build
index f5bc690..e4879d9 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/PCIeDevice/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/PCIeDevice/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/PCIeDevice__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/PCIeDevice.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/PCIeDevice.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/PCIeDevice',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Item/PCIeSlot/meson.build b/gen/xyz/openbmc_project/Inventory/Item/PCIeSlot/meson.build
index b3e5d94..51841f8 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/PCIeSlot/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/PCIeSlot/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/PCIeSlot__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/PCIeSlot.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/PCIeSlot.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/PCIeSlot',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Item/Panel/meson.build b/gen/xyz/openbmc_project/Inventory/Item/Panel/meson.build
index 8132982..fc39989 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/Panel/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/Panel/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/Panel__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Panel.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Panel.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Panel',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Item/PersistentMemory/Partition/meson.build b/gen/xyz/openbmc_project/Inventory/Item/PersistentMemory/Partition/meson.build
index 0f0cb21..3298992 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/PersistentMemory/Partition/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/PersistentMemory/Partition/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/PersistentMemory/Partition__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/PersistentMemory/Partition.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/PersistentMemory/Partition.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/PersistentMemory/Partition',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Item/PersistentMemory/PowerManagementPolicy/meson.build b/gen/xyz/openbmc_project/Inventory/Item/PersistentMemory/PowerManagementPolicy/meson.build
index 73c0b9a..a565f69 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/PersistentMemory/PowerManagementPolicy/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/PersistentMemory/PowerManagementPolicy/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/PersistentMemory/PowerManagementPolicy__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/PersistentMemory/PowerManagementPolicy.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/PersistentMemory/PowerManagementPolicy.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/PersistentMemory/PowerManagementPolicy',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Item/PersistentMemory/SecurityCapabilities/meson.build b/gen/xyz/openbmc_project/Inventory/Item/PersistentMemory/SecurityCapabilities/meson.build
index a346675..a392bb7 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/PersistentMemory/SecurityCapabilities/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/PersistentMemory/SecurityCapabilities/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/PersistentMemory/SecurityCapabilities__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/PersistentMemory/SecurityCapabilities.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/PersistentMemory/SecurityCapabilities.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/PersistentMemory/SecurityCapabilities',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Item/PersistentMemory/meson.build b/gen/xyz/openbmc_project/Inventory/Item/PersistentMemory/meson.build
index ee33da5..3507990 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/PersistentMemory/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/PersistentMemory/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/PersistentMemory__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/PersistentMemory.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/PersistentMemory.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/PersistentMemory',
     ],
 )
@@ -15,13 +15,13 @@
 subdir('Partition')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/PersistentMemory/Partition__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/PersistentMemory/Partition.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/PersistentMemory/Partition.interface.yaml',  ],
     output: [ 'Partition.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/PersistentMemory/Partition',
     ],
     build_by_default: true,
@@ -30,13 +30,13 @@
 subdir('PowerManagementPolicy')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/PersistentMemory/PowerManagementPolicy__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/PersistentMemory/PowerManagementPolicy.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/PersistentMemory/PowerManagementPolicy.interface.yaml',  ],
     output: [ 'PowerManagementPolicy.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/PersistentMemory/PowerManagementPolicy',
     ],
     build_by_default: true,
@@ -45,13 +45,13 @@
 subdir('SecurityCapabilities')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/PersistentMemory/SecurityCapabilities__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/PersistentMemory/SecurityCapabilities.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/PersistentMemory/SecurityCapabilities.interface.yaml',  ],
     output: [ 'SecurityCapabilities.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/PersistentMemory/SecurityCapabilities',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Inventory/Item/PowerSupply/meson.build b/gen/xyz/openbmc_project/Inventory/Item/PowerSupply/meson.build
index cb5b7d0..2ebe606 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/PowerSupply/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/PowerSupply/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/PowerSupply__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/PowerSupply.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/PowerSupply.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/PowerSupply',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Item/Rotor/meson.build b/gen/xyz/openbmc_project/Inventory/Item/Rotor/meson.build
index 7332595..fb53d72 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/Rotor/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/Rotor/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/Rotor__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Rotor.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Rotor.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Rotor',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Item/StorageController/meson.build b/gen/xyz/openbmc_project/Inventory/Item/StorageController/meson.build
index b34f68f..493e480 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/StorageController/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/StorageController/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/StorageController__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/StorageController.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/StorageController.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/StorageController',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Item/System/meson.build b/gen/xyz/openbmc_project/Inventory/Item/System/meson.build
index 61d648d..29aa8d3 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/System/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/System/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/System__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/System.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/System.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/System',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Item/Tpm/meson.build b/gen/xyz/openbmc_project/Inventory/Item/Tpm/meson.build
index 59bb7a8..3f4de9e 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/Tpm/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/Tpm/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/Tpm__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Tpm.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Tpm.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Tpm',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Item/Vrm/meson.build b/gen/xyz/openbmc_project/Inventory/Item/Vrm/meson.build
index c67485d..7147718 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/Vrm/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/Vrm/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item/Vrm__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Vrm.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Vrm.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Vrm',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Item/meson.build b/gen/xyz/openbmc_project/Inventory/Item/meson.build
index 95c73a8..03dd081 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Item__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item',
     ],
 )
@@ -15,13 +15,13 @@
 subdir('Accelerator')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/Accelerator__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Accelerator.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Accelerator.interface.yaml',  ],
     output: [ 'Accelerator.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Accelerator',
     ],
     build_by_default: true,
@@ -30,13 +30,13 @@
 subdir('Battery')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/Battery__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Battery.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Battery.interface.yaml',  ],
     output: [ 'Battery.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Battery',
     ],
     build_by_default: true,
@@ -45,13 +45,13 @@
 subdir('Bmc')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/Bmc__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Bmc.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Bmc.interface.yaml',  ],
     output: [ 'Bmc.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Bmc',
     ],
     build_by_default: true,
@@ -60,13 +60,13 @@
 subdir('Board')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/Board__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Board.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Board.interface.yaml',  ],
     output: [ 'Board.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Board',
     ],
     build_by_default: true,
@@ -75,13 +75,13 @@
 subdir('Chassis')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/Chassis__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Chassis.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Chassis.interface.yaml',  ],
     output: [ 'Chassis.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Chassis',
     ],
     build_by_default: true,
@@ -90,13 +90,13 @@
 subdir('Connector')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/Connector__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Connector.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Connector.interface.yaml',  ],
     output: [ 'Connector.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Connector',
     ],
     build_by_default: true,
@@ -105,13 +105,13 @@
 subdir('Cpu')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/Cpu__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Cpu.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Cpu.interface.yaml',  ],
     output: [ 'Cpu.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Cpu',
     ],
     build_by_default: true,
@@ -120,13 +120,13 @@
 subdir('CpuCore')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/CpuCore__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/CpuCore.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/CpuCore.interface.yaml',  ],
     output: [ 'CpuCore.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/CpuCore',
     ],
     build_by_default: true,
@@ -135,13 +135,13 @@
 subdir('Dimm')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/Dimm__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Dimm.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Dimm.interface.yaml',  ],
     output: [ 'Dimm.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Dimm',
     ],
     build_by_default: true,
@@ -150,13 +150,13 @@
 subdir('DiskBackplane')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/DiskBackplane__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/DiskBackplane.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/DiskBackplane.interface.yaml',  ],
     output: [ 'DiskBackplane.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/DiskBackplane',
     ],
     build_by_default: true,
@@ -165,13 +165,13 @@
 subdir('Ethernet')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/Ethernet__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Ethernet.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Ethernet.interface.yaml',  ],
     output: [ 'Ethernet.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Ethernet',
     ],
     build_by_default: true,
@@ -180,13 +180,13 @@
 subdir('FabricAdapter')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/FabricAdapter__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/FabricAdapter.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/FabricAdapter.interface.yaml',  ],
     output: [ 'FabricAdapter.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/FabricAdapter',
     ],
     build_by_default: true,
@@ -195,13 +195,13 @@
 subdir('Fan')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/Fan__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Fan.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Fan.interface.yaml',  ],
     output: [ 'Fan.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Fan',
     ],
     build_by_default: true,
@@ -210,13 +210,13 @@
 subdir('Global')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/Global__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Global.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Global.interface.yaml',  ],
     output: [ 'Global.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Global',
     ],
     build_by_default: true,
@@ -225,13 +225,13 @@
 subdir('MemoryBuffer')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/MemoryBuffer__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/MemoryBuffer.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/MemoryBuffer.interface.yaml',  ],
     output: [ 'MemoryBuffer.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/MemoryBuffer',
     ],
     build_by_default: true,
@@ -240,13 +240,13 @@
 subdir('NetworkInterface')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/NetworkInterface__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/NetworkInterface.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/NetworkInterface.interface.yaml',  ],
     output: [ 'NetworkInterface.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/NetworkInterface',
     ],
     build_by_default: true,
@@ -255,13 +255,13 @@
 subdir('PCIeDevice')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/PCIeDevice__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/PCIeDevice.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/PCIeDevice.interface.yaml',  ],
     output: [ 'PCIeDevice.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/PCIeDevice',
     ],
     build_by_default: true,
@@ -270,13 +270,13 @@
 subdir('PCIeSlot')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/PCIeSlot__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/PCIeSlot.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/PCIeSlot.interface.yaml',  ],
     output: [ 'PCIeSlot.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/PCIeSlot',
     ],
     build_by_default: true,
@@ -285,13 +285,13 @@
 subdir('Panel')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/Panel__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Panel.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Panel.interface.yaml',  ],
     output: [ 'Panel.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Panel',
     ],
     build_by_default: true,
@@ -300,13 +300,13 @@
 subdir('PersistentMemory')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/PersistentMemory__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/PersistentMemory.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/PersistentMemory.interface.yaml',  ],
     output: [ 'PersistentMemory.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/PersistentMemory',
     ],
     build_by_default: true,
@@ -315,13 +315,13 @@
 subdir('PowerSupply')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/PowerSupply__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/PowerSupply.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/PowerSupply.interface.yaml',  ],
     output: [ 'PowerSupply.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/PowerSupply',
     ],
     build_by_default: true,
@@ -330,13 +330,13 @@
 subdir('Rotor')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/Rotor__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Rotor.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Rotor.interface.yaml',  ],
     output: [ 'Rotor.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Rotor',
     ],
     build_by_default: true,
@@ -345,13 +345,13 @@
 subdir('StorageController')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/StorageController__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/StorageController.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/StorageController.interface.yaml',  ],
     output: [ 'StorageController.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/StorageController',
     ],
     build_by_default: true,
@@ -360,13 +360,13 @@
 subdir('System')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/System__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/System.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/System.interface.yaml',  ],
     output: [ 'System.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/System',
     ],
     build_by_default: true,
@@ -375,13 +375,13 @@
 subdir('Tpm')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/Tpm__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Tpm.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Tpm.interface.yaml',  ],
     output: [ 'Tpm.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Tpm',
     ],
     build_by_default: true,
@@ -390,13 +390,13 @@
 subdir('Vrm')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item/Vrm__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item/Vrm.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item/Vrm.interface.yaml',  ],
     output: [ 'Vrm.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item/Vrm',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Inventory/Manager/meson.build b/gen/xyz/openbmc_project/Inventory/Manager/meson.build
index 3e5ae16..b56aa40 100644
--- a/gen/xyz/openbmc_project/Inventory/Manager/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Manager/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Manager__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Manager.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Manager.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Manager',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Source/PLDM/Entity/meson.build b/gen/xyz/openbmc_project/Inventory/Source/PLDM/Entity/meson.build
index fbc558e..81d086a 100644
--- a/gen/xyz/openbmc_project/Inventory/Source/PLDM/Entity/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Source/PLDM/Entity/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Source/PLDM/Entity__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Source/PLDM/Entity.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Source/PLDM/Entity.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Source/PLDM/Entity',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Source/PLDM/FRU/meson.build b/gen/xyz/openbmc_project/Inventory/Source/PLDM/FRU/meson.build
index a171e9a..d74d77d 100644
--- a/gen/xyz/openbmc_project/Inventory/Source/PLDM/FRU/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Source/PLDM/FRU/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory/Source/PLDM/FRU__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Source/PLDM/FRU.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Source/PLDM/FRU.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Source/PLDM/FRU',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Inventory/Source/PLDM/meson.build b/gen/xyz/openbmc_project/Inventory/Source/PLDM/meson.build
index b5876e1..a099cad 100644
--- a/gen/xyz/openbmc_project/Inventory/Source/PLDM/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Source/PLDM/meson.build
@@ -2,13 +2,13 @@
 subdir('Entity')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Source/PLDM/Entity__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Source/PLDM/Entity.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Source/PLDM/Entity.interface.yaml',  ],
     output: [ 'Entity.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Source/PLDM/Entity',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('FRU')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Source/PLDM/FRU__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Source/PLDM/FRU.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Source/PLDM/FRU.interface.yaml',  ],
     output: [ 'FRU.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Source/PLDM/FRU',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Inventory/meson.build b/gen/xyz/openbmc_project/Inventory/meson.build
index 1087000..0e97a34 100644
--- a/gen/xyz/openbmc_project/Inventory/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Inventory__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory.errors.yaml',  ],
     output: [ 'error.cpp', 'error.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory',
     ],
 )
@@ -16,13 +16,13 @@
 subdir('Item')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Item__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Item.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Item.interface.yaml',  ],
     output: [ 'Item.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Item',
     ],
     build_by_default: true,
@@ -31,13 +31,13 @@
 subdir('Manager')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory/Manager__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory/Manager.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory/Manager.interface.yaml',  ],
     output: [ 'Manager.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory/Manager',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Ipmi/SOL/meson.build b/gen/xyz/openbmc_project/Ipmi/SOL/meson.build
index 3d9707f..c03c2f6 100644
--- a/gen/xyz/openbmc_project/Ipmi/SOL/meson.build
+++ b/gen/xyz/openbmc_project/Ipmi/SOL/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Ipmi/SOL__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Ipmi/SOL.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Ipmi/SOL.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Ipmi/SOL',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Ipmi/SessionInfo/meson.build b/gen/xyz/openbmc_project/Ipmi/SessionInfo/meson.build
index 578df85..281a3ec 100644
--- a/gen/xyz/openbmc_project/Ipmi/SessionInfo/meson.build
+++ b/gen/xyz/openbmc_project/Ipmi/SessionInfo/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Ipmi/SessionInfo__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Ipmi/SessionInfo.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Ipmi/SessionInfo.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Ipmi/SessionInfo',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Ipmi/meson.build b/gen/xyz/openbmc_project/Ipmi/meson.build
index 593e8fc..afdee90 100644
--- a/gen/xyz/openbmc_project/Ipmi/meson.build
+++ b/gen/xyz/openbmc_project/Ipmi/meson.build
@@ -2,13 +2,13 @@
 subdir('SOL')
 generated_others += custom_target(
     'xyz/openbmc_project/Ipmi/SOL__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Ipmi/SOL.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Ipmi/SOL.interface.yaml',  ],
     output: [ 'SOL.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Ipmi/SOL',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('SessionInfo')
 generated_others += custom_target(
     'xyz/openbmc_project/Ipmi/SessionInfo__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Ipmi/SessionInfo.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Ipmi/SessionInfo.interface.yaml',  ],
     output: [ 'SessionInfo.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Ipmi/SessionInfo',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Led/Group/meson.build b/gen/xyz/openbmc_project/Led/Group/meson.build
index dc19718..16d9f90 100644
--- a/gen/xyz/openbmc_project/Led/Group/meson.build
+++ b/gen/xyz/openbmc_project/Led/Group/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Led/Group__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Led/Group.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Led/Group.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Led/Group',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Led/Physical/meson.build b/gen/xyz/openbmc_project/Led/Physical/meson.build
index 421fe13..ac7ad44 100644
--- a/gen/xyz/openbmc_project/Led/Physical/meson.build
+++ b/gen/xyz/openbmc_project/Led/Physical/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Led/Physical__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Led/Physical.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Led/Physical.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Led/Physical',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Led/meson.build b/gen/xyz/openbmc_project/Led/meson.build
index e44b6c1..0ae593d 100644
--- a/gen/xyz/openbmc_project/Led/meson.build
+++ b/gen/xyz/openbmc_project/Led/meson.build
@@ -2,13 +2,13 @@
 subdir('Group')
 generated_others += custom_target(
     'xyz/openbmc_project/Led/Group__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Led/Group.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Led/Group.interface.yaml',  ],
     output: [ 'Group.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Led/Group',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('Physical')
 generated_others += custom_target(
     'xyz/openbmc_project/Led/Physical__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Led/Physical.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Led/Physical.interface.yaml',  ],
     output: [ 'Physical.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Led/Physical',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Logging/Create/meson.build b/gen/xyz/openbmc_project/Logging/Create/meson.build
index 91431f8..74a407d 100644
--- a/gen/xyz/openbmc_project/Logging/Create/meson.build
+++ b/gen/xyz/openbmc_project/Logging/Create/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Logging/Create__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Logging/Create.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Logging/Create.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Logging/Create',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Logging/Entry/meson.build b/gen/xyz/openbmc_project/Logging/Entry/meson.build
index 4bb85c7..3f8a176 100644
--- a/gen/xyz/openbmc_project/Logging/Entry/meson.build
+++ b/gen/xyz/openbmc_project/Logging/Entry/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Logging/Entry__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Logging/Entry.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Logging/Entry.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Logging/Entry',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Logging/ErrorBlocksTransition/meson.build b/gen/xyz/openbmc_project/Logging/ErrorBlocksTransition/meson.build
index 514b063..53c8183 100644
--- a/gen/xyz/openbmc_project/Logging/ErrorBlocksTransition/meson.build
+++ b/gen/xyz/openbmc_project/Logging/ErrorBlocksTransition/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Logging/ErrorBlocksTransition__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Logging/ErrorBlocksTransition.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Logging/ErrorBlocksTransition.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Logging/ErrorBlocksTransition',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Logging/Event/meson.build b/gen/xyz/openbmc_project/Logging/Event/meson.build
index c430b4a..dd427f4 100644
--- a/gen/xyz/openbmc_project/Logging/Event/meson.build
+++ b/gen/xyz/openbmc_project/Logging/Event/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Logging/Event__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Logging/Event.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Logging/Event.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Logging/Event',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Logging/IPMI/meson.build b/gen/xyz/openbmc_project/Logging/IPMI/meson.build
index 08b6810..ede5875 100644
--- a/gen/xyz/openbmc_project/Logging/IPMI/meson.build
+++ b/gen/xyz/openbmc_project/Logging/IPMI/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Logging/IPMI__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Logging/IPMI.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Logging/IPMI.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Logging/IPMI',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Logging/SEL/meson.build b/gen/xyz/openbmc_project/Logging/SEL/meson.build
index 87c76ea..966d635 100644
--- a/gen/xyz/openbmc_project/Logging/SEL/meson.build
+++ b/gen/xyz/openbmc_project/Logging/SEL/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Logging/SEL__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Logging/SEL.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Logging/SEL.errors.yaml',  ],
     output: [ 'error.cpp', 'error.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Logging/SEL',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Logging/Settings/meson.build b/gen/xyz/openbmc_project/Logging/Settings/meson.build
index 8fd7f81..0bf195c 100644
--- a/gen/xyz/openbmc_project/Logging/Settings/meson.build
+++ b/gen/xyz/openbmc_project/Logging/Settings/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Logging/Settings__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Logging/Settings.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Logging/Settings.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Logging/Settings',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Logging/meson.build b/gen/xyz/openbmc_project/Logging/meson.build
index eb55167..3d42605 100644
--- a/gen/xyz/openbmc_project/Logging/meson.build
+++ b/gen/xyz/openbmc_project/Logging/meson.build
@@ -2,13 +2,13 @@
 subdir('Create')
 generated_others += custom_target(
     'xyz/openbmc_project/Logging/Create__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Logging/Create.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Logging/Create.interface.yaml',  ],
     output: [ 'Create.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Logging/Create',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('Entry')
 generated_others += custom_target(
     'xyz/openbmc_project/Logging/Entry__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Logging/Entry.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Logging/Entry.interface.yaml',  ],
     output: [ 'Entry.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Logging/Entry',
     ],
     build_by_default: true,
@@ -32,13 +32,13 @@
 subdir('ErrorBlocksTransition')
 generated_others += custom_target(
     'xyz/openbmc_project/Logging/ErrorBlocksTransition__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Logging/ErrorBlocksTransition.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Logging/ErrorBlocksTransition.interface.yaml',  ],
     output: [ 'ErrorBlocksTransition.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Logging/ErrorBlocksTransition',
     ],
     build_by_default: true,
@@ -47,13 +47,13 @@
 subdir('Event')
 generated_others += custom_target(
     'xyz/openbmc_project/Logging/Event__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Logging/Event.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Logging/Event.interface.yaml',  ],
     output: [ 'Event.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Logging/Event',
     ],
     build_by_default: true,
@@ -62,13 +62,13 @@
 subdir('IPMI')
 generated_others += custom_target(
     'xyz/openbmc_project/Logging/IPMI__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Logging/IPMI.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Logging/IPMI.interface.yaml',  ],
     output: [ 'IPMI.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Logging/IPMI',
     ],
     build_by_default: true,
@@ -77,13 +77,13 @@
 subdir('SEL')
 generated_others += custom_target(
     'xyz/openbmc_project/Logging/SEL__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Logging/SEL.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Logging/SEL.errors.yaml',  ],
     output: [ 'SEL.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Logging/SEL',
     ],
     build_by_default: true,
@@ -92,13 +92,13 @@
 subdir('Settings')
 generated_others += custom_target(
     'xyz/openbmc_project/Logging/Settings__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Logging/Settings.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Logging/Settings.interface.yaml',  ],
     output: [ 'Settings.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Logging/Settings',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Memory/MemoryECC/meson.build b/gen/xyz/openbmc_project/Memory/MemoryECC/meson.build
index 33c9f68..bd80ee1 100644
--- a/gen/xyz/openbmc_project/Memory/MemoryECC/meson.build
+++ b/gen/xyz/openbmc_project/Memory/MemoryECC/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Memory/MemoryECC__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Memory/MemoryECC.errors.yaml', meson.source_root() / 'xyz/openbmc_project/Memory/MemoryECC.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Memory/MemoryECC.errors.yaml', meson.project_source_root() / 'xyz/openbmc_project/Memory/MemoryECC.interface.yaml',  ],
     output: [ 'error.cpp', 'error.hpp', 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Memory/MemoryECC',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Memory/meson.build b/gen/xyz/openbmc_project/Memory/meson.build
index 8d1733b..d6723d7 100644
--- a/gen/xyz/openbmc_project/Memory/meson.build
+++ b/gen/xyz/openbmc_project/Memory/meson.build
@@ -2,13 +2,13 @@
 subdir('MemoryECC')
 generated_others += custom_target(
     'xyz/openbmc_project/Memory/MemoryECC__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Memory/MemoryECC.errors.yaml', meson.source_root() / 'xyz/openbmc_project/Memory/MemoryECC.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Memory/MemoryECC.errors.yaml', meson.project_source_root() / 'xyz/openbmc_project/Memory/MemoryECC.interface.yaml',  ],
     output: [ 'MemoryECC.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Memory/MemoryECC',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Network/Client/meson.build b/gen/xyz/openbmc_project/Network/Client/meson.build
index 68d3f88..d85ca54 100644
--- a/gen/xyz/openbmc_project/Network/Client/meson.build
+++ b/gen/xyz/openbmc_project/Network/Client/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Network/Client__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Network/Client.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Network/Client.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Network/Client',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Network/DHCPConfiguration/meson.build b/gen/xyz/openbmc_project/Network/DHCPConfiguration/meson.build
index cc1862a..00cab52 100644
--- a/gen/xyz/openbmc_project/Network/DHCPConfiguration/meson.build
+++ b/gen/xyz/openbmc_project/Network/DHCPConfiguration/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Network/DHCPConfiguration__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Network/DHCPConfiguration.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Network/DHCPConfiguration.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Network/DHCPConfiguration',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Network/EthernetInterface/meson.build b/gen/xyz/openbmc_project/Network/EthernetInterface/meson.build
index e276b38..84fd80d 100644
--- a/gen/xyz/openbmc_project/Network/EthernetInterface/meson.build
+++ b/gen/xyz/openbmc_project/Network/EthernetInterface/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Network/EthernetInterface__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Network/EthernetInterface.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Network/EthernetInterface.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Network/EthernetInterface',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Network/Experimental/Bond/meson.build b/gen/xyz/openbmc_project/Network/Experimental/Bond/meson.build
index a6fcf50..616f9c2 100644
--- a/gen/xyz/openbmc_project/Network/Experimental/Bond/meson.build
+++ b/gen/xyz/openbmc_project/Network/Experimental/Bond/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Network/Experimental/Bond__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Network/Experimental/Bond.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Network/Experimental/Bond.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Network/Experimental/Bond',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Network/Experimental/Tunnel/meson.build b/gen/xyz/openbmc_project/Network/Experimental/Tunnel/meson.build
index d230cea..72cb26f 100644
--- a/gen/xyz/openbmc_project/Network/Experimental/Tunnel/meson.build
+++ b/gen/xyz/openbmc_project/Network/Experimental/Tunnel/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Network/Experimental/Tunnel__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Network/Experimental/Tunnel.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Network/Experimental/Tunnel.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Network/Experimental/Tunnel',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Network/Experimental/meson.build b/gen/xyz/openbmc_project/Network/Experimental/meson.build
index e346a19..e8c1101 100644
--- a/gen/xyz/openbmc_project/Network/Experimental/meson.build
+++ b/gen/xyz/openbmc_project/Network/Experimental/meson.build
@@ -2,13 +2,13 @@
 subdir('Bond')
 generated_others += custom_target(
     'xyz/openbmc_project/Network/Experimental/Bond__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Network/Experimental/Bond.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Network/Experimental/Bond.interface.yaml',  ],
     output: [ 'Bond.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Network/Experimental/Bond',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('Tunnel')
 generated_others += custom_target(
     'xyz/openbmc_project/Network/Experimental/Tunnel__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Network/Experimental/Tunnel.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Network/Experimental/Tunnel.interface.yaml',  ],
     output: [ 'Tunnel.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Network/Experimental/Tunnel',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Network/IP/meson.build b/gen/xyz/openbmc_project/Network/IP/meson.build
index 46a5acc..1a5440a 100644
--- a/gen/xyz/openbmc_project/Network/IP/meson.build
+++ b/gen/xyz/openbmc_project/Network/IP/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Network/IP__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Network/IP.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Network/IP.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Network/IP',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Network/MACAddress/meson.build b/gen/xyz/openbmc_project/Network/MACAddress/meson.build
index 6493652..8234079 100644
--- a/gen/xyz/openbmc_project/Network/MACAddress/meson.build
+++ b/gen/xyz/openbmc_project/Network/MACAddress/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Network/MACAddress__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Network/MACAddress.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Network/MACAddress.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Network/MACAddress',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Network/Neighbor/meson.build b/gen/xyz/openbmc_project/Network/Neighbor/meson.build
index 07e9e4f..35a272f 100644
--- a/gen/xyz/openbmc_project/Network/Neighbor/meson.build
+++ b/gen/xyz/openbmc_project/Network/Neighbor/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Network/Neighbor__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Network/Neighbor.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Network/Neighbor.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Network/Neighbor',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Network/SystemConfiguration/meson.build b/gen/xyz/openbmc_project/Network/SystemConfiguration/meson.build
index ae9a05e..6788b24 100644
--- a/gen/xyz/openbmc_project/Network/SystemConfiguration/meson.build
+++ b/gen/xyz/openbmc_project/Network/SystemConfiguration/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Network/SystemConfiguration__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Network/SystemConfiguration.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Network/SystemConfiguration.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Network/SystemConfiguration',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Network/VLAN/meson.build b/gen/xyz/openbmc_project/Network/VLAN/meson.build
index c5cf15a..1c3f009 100644
--- a/gen/xyz/openbmc_project/Network/VLAN/meson.build
+++ b/gen/xyz/openbmc_project/Network/VLAN/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Network/VLAN__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Network/VLAN.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Network/VLAN.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Network/VLAN',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Network/meson.build b/gen/xyz/openbmc_project/Network/meson.build
index b300a64..ff8ee6f 100644
--- a/gen/xyz/openbmc_project/Network/meson.build
+++ b/gen/xyz/openbmc_project/Network/meson.build
@@ -2,13 +2,13 @@
 subdir('Client')
 generated_others += custom_target(
     'xyz/openbmc_project/Network/Client__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Network/Client.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Network/Client.interface.yaml',  ],
     output: [ 'Client.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Network/Client',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('DHCPConfiguration')
 generated_others += custom_target(
     'xyz/openbmc_project/Network/DHCPConfiguration__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Network/DHCPConfiguration.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Network/DHCPConfiguration.interface.yaml',  ],
     output: [ 'DHCPConfiguration.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Network/DHCPConfiguration',
     ],
     build_by_default: true,
@@ -32,13 +32,13 @@
 subdir('EthernetInterface')
 generated_others += custom_target(
     'xyz/openbmc_project/Network/EthernetInterface__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Network/EthernetInterface.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Network/EthernetInterface.interface.yaml',  ],
     output: [ 'EthernetInterface.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Network/EthernetInterface',
     ],
     build_by_default: true,
@@ -48,13 +48,13 @@
 subdir('IP')
 generated_others += custom_target(
     'xyz/openbmc_project/Network/IP__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Network/IP.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Network/IP.interface.yaml',  ],
     output: [ 'IP.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Network/IP',
     ],
     build_by_default: true,
@@ -63,13 +63,13 @@
 subdir('MACAddress')
 generated_others += custom_target(
     'xyz/openbmc_project/Network/MACAddress__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Network/MACAddress.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Network/MACAddress.interface.yaml',  ],
     output: [ 'MACAddress.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Network/MACAddress',
     ],
     build_by_default: true,
@@ -78,13 +78,13 @@
 subdir('Neighbor')
 generated_others += custom_target(
     'xyz/openbmc_project/Network/Neighbor__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Network/Neighbor.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Network/Neighbor.interface.yaml',  ],
     output: [ 'Neighbor.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Network/Neighbor',
     ],
     build_by_default: true,
@@ -93,13 +93,13 @@
 subdir('SystemConfiguration')
 generated_others += custom_target(
     'xyz/openbmc_project/Network/SystemConfiguration__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Network/SystemConfiguration.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Network/SystemConfiguration.interface.yaml',  ],
     output: [ 'SystemConfiguration.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Network/SystemConfiguration',
     ],
     build_by_default: true,
@@ -108,13 +108,13 @@
 subdir('VLAN')
 generated_others += custom_target(
     'xyz/openbmc_project/Network/VLAN__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Network/VLAN.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Network/VLAN.interface.yaml',  ],
     output: [ 'VLAN.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Network/VLAN',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Nvme/Status/meson.build b/gen/xyz/openbmc_project/Nvme/Status/meson.build
index 6d2ce05..bf5e9cb 100644
--- a/gen/xyz/openbmc_project/Nvme/Status/meson.build
+++ b/gen/xyz/openbmc_project/Nvme/Status/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Nvme/Status__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Nvme/Status.errors.yaml', meson.source_root() / 'xyz/openbmc_project/Nvme/Status.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Nvme/Status.errors.yaml', meson.project_source_root() / 'xyz/openbmc_project/Nvme/Status.interface.yaml',  ],
     output: [ 'error.cpp', 'error.hpp', 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Nvme/Status',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Nvme/meson.build b/gen/xyz/openbmc_project/Nvme/meson.build
index 6495baa..23528a2 100644
--- a/gen/xyz/openbmc_project/Nvme/meson.build
+++ b/gen/xyz/openbmc_project/Nvme/meson.build
@@ -2,13 +2,13 @@
 subdir('Status')
 generated_others += custom_target(
     'xyz/openbmc_project/Nvme/Status__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Nvme/Status.errors.yaml', meson.source_root() / 'xyz/openbmc_project/Nvme/Status.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Nvme/Status.errors.yaml', meson.project_source_root() / 'xyz/openbmc_project/Nvme/Status.interface.yaml',  ],
     output: [ 'Status.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Nvme/Status',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Object/Delete/meson.build b/gen/xyz/openbmc_project/Object/Delete/meson.build
index d841efe..fc80cec 100644
--- a/gen/xyz/openbmc_project/Object/Delete/meson.build
+++ b/gen/xyz/openbmc_project/Object/Delete/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Object/Delete__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Object/Delete.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Object/Delete.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Object/Delete',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Object/Enable/meson.build b/gen/xyz/openbmc_project/Object/Enable/meson.build
index 216f686..3921c60 100644
--- a/gen/xyz/openbmc_project/Object/Enable/meson.build
+++ b/gen/xyz/openbmc_project/Object/Enable/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Object/Enable__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Object/Enable.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Object/Enable.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Object/Enable',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Object/meson.build b/gen/xyz/openbmc_project/Object/meson.build
index dc1b8cd..ca5f50f 100644
--- a/gen/xyz/openbmc_project/Object/meson.build
+++ b/gen/xyz/openbmc_project/Object/meson.build
@@ -2,13 +2,13 @@
 subdir('Delete')
 generated_others += custom_target(
     'xyz/openbmc_project/Object/Delete__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Object/Delete.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Object/Delete.interface.yaml',  ],
     output: [ 'Delete.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Object/Delete',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('Enable')
 generated_others += custom_target(
     'xyz/openbmc_project/Object/Enable__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Object/Enable.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Object/Enable.interface.yaml',  ],
     output: [ 'Enable.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Object/Enable',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/ObjectMapper/meson.build b/gen/xyz/openbmc_project/ObjectMapper/meson.build
index 4d205c6..1bff614 100644
--- a/gen/xyz/openbmc_project/ObjectMapper/meson.build
+++ b/gen/xyz/openbmc_project/ObjectMapper/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/ObjectMapper__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/ObjectMapper.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/ObjectMapper.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/ObjectMapper',
     ],
 )
diff --git a/gen/xyz/openbmc_project/PFR/Attributes/meson.build b/gen/xyz/openbmc_project/PFR/Attributes/meson.build
index 549238a..7c64e0d 100644
--- a/gen/xyz/openbmc_project/PFR/Attributes/meson.build
+++ b/gen/xyz/openbmc_project/PFR/Attributes/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/PFR/Attributes__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/PFR/Attributes.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/PFR/Attributes.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/PFR/Attributes',
     ],
 )
diff --git a/gen/xyz/openbmc_project/PFR/meson.build b/gen/xyz/openbmc_project/PFR/meson.build
index 6800305..935b147 100644
--- a/gen/xyz/openbmc_project/PFR/meson.build
+++ b/gen/xyz/openbmc_project/PFR/meson.build
@@ -2,13 +2,13 @@
 subdir('Attributes')
 generated_others += custom_target(
     'xyz/openbmc_project/PFR/Attributes__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/PFR/Attributes.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/PFR/Attributes.interface.yaml',  ],
     output: [ 'Attributes.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/PFR/Attributes',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/PLDM/Event/meson.build b/gen/xyz/openbmc_project/PLDM/Event/meson.build
index 1420411..adfc438 100644
--- a/gen/xyz/openbmc_project/PLDM/Event/meson.build
+++ b/gen/xyz/openbmc_project/PLDM/Event/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/PLDM/Event__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/PLDM/Event.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/PLDM/Event.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/PLDM/Event',
     ],
 )
diff --git a/gen/xyz/openbmc_project/PLDM/PDR/meson.build b/gen/xyz/openbmc_project/PLDM/PDR/meson.build
index d33c9fc..40a15bc 100644
--- a/gen/xyz/openbmc_project/PLDM/PDR/meson.build
+++ b/gen/xyz/openbmc_project/PLDM/PDR/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/PLDM/PDR__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/PLDM/PDR.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/PLDM/PDR.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/PLDM/PDR',
     ],
 )
diff --git a/gen/xyz/openbmc_project/PLDM/Provider/Certs/Authority/CSR/meson.build b/gen/xyz/openbmc_project/PLDM/Provider/Certs/Authority/CSR/meson.build
index 3bbd277..a1086bd 100644
--- a/gen/xyz/openbmc_project/PLDM/Provider/Certs/Authority/CSR/meson.build
+++ b/gen/xyz/openbmc_project/PLDM/Provider/Certs/Authority/CSR/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/PLDM/Provider/Certs/Authority/CSR__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/PLDM/Provider/Certs/Authority/CSR.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/PLDM/Provider/Certs/Authority/CSR.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/PLDM/Provider/Certs/Authority/CSR',
     ],
 )
diff --git a/gen/xyz/openbmc_project/PLDM/Provider/Certs/Authority/meson.build b/gen/xyz/openbmc_project/PLDM/Provider/Certs/Authority/meson.build
index 993c775..e9b2ae7 100644
--- a/gen/xyz/openbmc_project/PLDM/Provider/Certs/Authority/meson.build
+++ b/gen/xyz/openbmc_project/PLDM/Provider/Certs/Authority/meson.build
@@ -2,13 +2,13 @@
 subdir('CSR')
 generated_others += custom_target(
     'xyz/openbmc_project/PLDM/Provider/Certs/Authority/CSR__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/PLDM/Provider/Certs/Authority/CSR.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/PLDM/Provider/Certs/Authority/CSR.interface.yaml',  ],
     output: [ 'CSR.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/PLDM/Provider/Certs/Authority/CSR',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/PLDM/Requester/meson.build b/gen/xyz/openbmc_project/PLDM/Requester/meson.build
index 3268053..126efaf 100644
--- a/gen/xyz/openbmc_project/PLDM/Requester/meson.build
+++ b/gen/xyz/openbmc_project/PLDM/Requester/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/PLDM/Requester__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/PLDM/Requester.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/PLDM/Requester.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/PLDM/Requester',
     ],
 )
diff --git a/gen/xyz/openbmc_project/PLDM/meson.build b/gen/xyz/openbmc_project/PLDM/meson.build
index 9087286..82cb023 100644
--- a/gen/xyz/openbmc_project/PLDM/meson.build
+++ b/gen/xyz/openbmc_project/PLDM/meson.build
@@ -2,13 +2,13 @@
 subdir('Event')
 generated_others += custom_target(
     'xyz/openbmc_project/PLDM/Event__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/PLDM/Event.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/PLDM/Event.interface.yaml',  ],
     output: [ 'Event.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/PLDM/Event',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('PDR')
 generated_others += custom_target(
     'xyz/openbmc_project/PLDM/PDR__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/PLDM/PDR.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/PLDM/PDR.interface.yaml',  ],
     output: [ 'PDR.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/PLDM/PDR',
     ],
     build_by_default: true,
@@ -33,13 +33,13 @@
 subdir('Requester')
 generated_others += custom_target(
     'xyz/openbmc_project/PLDM/Requester__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/PLDM/Requester.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/PLDM/Requester.interface.yaml',  ],
     output: [ 'Requester.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/PLDM/Requester',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/ScheduledTime/meson.build b/gen/xyz/openbmc_project/ScheduledTime/meson.build
index b437a17..cdc709c 100644
--- a/gen/xyz/openbmc_project/ScheduledTime/meson.build
+++ b/gen/xyz/openbmc_project/ScheduledTime/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/ScheduledTime__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/ScheduledTime.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/ScheduledTime.errors.yaml',  ],
     output: [ 'error.cpp', 'error.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/ScheduledTime',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Sensor/Device/meson.build b/gen/xyz/openbmc_project/Sensor/Device/meson.build
index d8542a8..a3e9865 100644
--- a/gen/xyz/openbmc_project/Sensor/Device/meson.build
+++ b/gen/xyz/openbmc_project/Sensor/Device/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Sensor/Device__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Sensor/Device.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Sensor/Device.errors.yaml',  ],
     output: [ 'error.cpp', 'error.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Sensor/Device',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Sensor/Threshold/Critical/meson.build b/gen/xyz/openbmc_project/Sensor/Threshold/Critical/meson.build
index ea74a3f..d5d3847 100644
--- a/gen/xyz/openbmc_project/Sensor/Threshold/Critical/meson.build
+++ b/gen/xyz/openbmc_project/Sensor/Threshold/Critical/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Sensor/Threshold/Critical__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Sensor/Threshold/Critical.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Sensor/Threshold/Critical.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Sensor/Threshold/Critical',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Sensor/Threshold/HardShutdown/meson.build b/gen/xyz/openbmc_project/Sensor/Threshold/HardShutdown/meson.build
index a74101e..2b6c3b2 100644
--- a/gen/xyz/openbmc_project/Sensor/Threshold/HardShutdown/meson.build
+++ b/gen/xyz/openbmc_project/Sensor/Threshold/HardShutdown/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Sensor/Threshold/HardShutdown__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Sensor/Threshold/HardShutdown.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Sensor/Threshold/HardShutdown.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Sensor/Threshold/HardShutdown',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Sensor/Threshold/PerformanceLoss/meson.build b/gen/xyz/openbmc_project/Sensor/Threshold/PerformanceLoss/meson.build
index 2e9e082..b5abbfa 100644
--- a/gen/xyz/openbmc_project/Sensor/Threshold/PerformanceLoss/meson.build
+++ b/gen/xyz/openbmc_project/Sensor/Threshold/PerformanceLoss/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Sensor/Threshold/PerformanceLoss__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Sensor/Threshold/PerformanceLoss.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Sensor/Threshold/PerformanceLoss.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Sensor/Threshold/PerformanceLoss',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Sensor/Threshold/SoftShutdown/meson.build b/gen/xyz/openbmc_project/Sensor/Threshold/SoftShutdown/meson.build
index 8cdf4ee..c2e621e 100644
--- a/gen/xyz/openbmc_project/Sensor/Threshold/SoftShutdown/meson.build
+++ b/gen/xyz/openbmc_project/Sensor/Threshold/SoftShutdown/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Sensor/Threshold/SoftShutdown__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Sensor/Threshold/SoftShutdown.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Sensor/Threshold/SoftShutdown.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Sensor/Threshold/SoftShutdown',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Sensor/Threshold/Warning/meson.build b/gen/xyz/openbmc_project/Sensor/Threshold/Warning/meson.build
index 3b960b8..96e6c83 100644
--- a/gen/xyz/openbmc_project/Sensor/Threshold/Warning/meson.build
+++ b/gen/xyz/openbmc_project/Sensor/Threshold/Warning/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Sensor/Threshold/Warning__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Sensor/Threshold/Warning.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Sensor/Threshold/Warning.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Sensor/Threshold/Warning',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Sensor/Threshold/meson.build b/gen/xyz/openbmc_project/Sensor/Threshold/meson.build
index e04269e..d3980fb 100644
--- a/gen/xyz/openbmc_project/Sensor/Threshold/meson.build
+++ b/gen/xyz/openbmc_project/Sensor/Threshold/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Sensor/Threshold__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Sensor/Threshold.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Sensor/Threshold.errors.yaml',  ],
     output: [ 'error.cpp', 'error.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Sensor/Threshold',
     ],
 )
@@ -15,13 +15,13 @@
 subdir('Critical')
 generated_others += custom_target(
     'xyz/openbmc_project/Sensor/Threshold/Critical__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Sensor/Threshold/Critical.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Sensor/Threshold/Critical.interface.yaml',  ],
     output: [ 'Critical.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Sensor/Threshold/Critical',
     ],
     build_by_default: true,
@@ -30,13 +30,13 @@
 subdir('HardShutdown')
 generated_others += custom_target(
     'xyz/openbmc_project/Sensor/Threshold/HardShutdown__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Sensor/Threshold/HardShutdown.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Sensor/Threshold/HardShutdown.interface.yaml',  ],
     output: [ 'HardShutdown.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Sensor/Threshold/HardShutdown',
     ],
     build_by_default: true,
@@ -45,13 +45,13 @@
 subdir('PerformanceLoss')
 generated_others += custom_target(
     'xyz/openbmc_project/Sensor/Threshold/PerformanceLoss__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Sensor/Threshold/PerformanceLoss.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Sensor/Threshold/PerformanceLoss.interface.yaml',  ],
     output: [ 'PerformanceLoss.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Sensor/Threshold/PerformanceLoss',
     ],
     build_by_default: true,
@@ -60,13 +60,13 @@
 subdir('SoftShutdown')
 generated_others += custom_target(
     'xyz/openbmc_project/Sensor/Threshold/SoftShutdown__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Sensor/Threshold/SoftShutdown.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Sensor/Threshold/SoftShutdown.interface.yaml',  ],
     output: [ 'SoftShutdown.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Sensor/Threshold/SoftShutdown',
     ],
     build_by_default: true,
@@ -75,13 +75,13 @@
 subdir('Warning')
 generated_others += custom_target(
     'xyz/openbmc_project/Sensor/Threshold/Warning__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Sensor/Threshold/Warning.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Sensor/Threshold/Warning.interface.yaml',  ],
     output: [ 'Warning.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Sensor/Threshold/Warning',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Sensor/Value/meson.build b/gen/xyz/openbmc_project/Sensor/Value/meson.build
index 49640e8..b587a3a 100644
--- a/gen/xyz/openbmc_project/Sensor/Value/meson.build
+++ b/gen/xyz/openbmc_project/Sensor/Value/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Sensor/Value__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Sensor/Value.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Sensor/Value.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Sensor/Value',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Sensor/meson.build b/gen/xyz/openbmc_project/Sensor/meson.build
index b749c1a..69e17f9 100644
--- a/gen/xyz/openbmc_project/Sensor/meson.build
+++ b/gen/xyz/openbmc_project/Sensor/meson.build
@@ -2,13 +2,13 @@
 subdir('Device')
 generated_others += custom_target(
     'xyz/openbmc_project/Sensor/Device__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Sensor/Device.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Sensor/Device.errors.yaml',  ],
     output: [ 'Device.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Sensor/Device',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('Threshold')
 generated_others += custom_target(
     'xyz/openbmc_project/Sensor/Threshold__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Sensor/Threshold.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Sensor/Threshold.errors.yaml',  ],
     output: [ 'Threshold.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Sensor/Threshold',
     ],
     build_by_default: true,
@@ -32,13 +32,13 @@
 subdir('Value')
 generated_others += custom_target(
     'xyz/openbmc_project/Sensor/Value__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Sensor/Value.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Sensor/Value.interface.yaml',  ],
     output: [ 'Value.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Sensor/Value',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Smbios/MDR_V2/meson.build b/gen/xyz/openbmc_project/Smbios/MDR_V2/meson.build
index 56611ef..cd37560 100644
--- a/gen/xyz/openbmc_project/Smbios/MDR_V2/meson.build
+++ b/gen/xyz/openbmc_project/Smbios/MDR_V2/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Smbios/MDR_V2__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Smbios/MDR_V2.errors.yaml', meson.source_root() / 'xyz/openbmc_project/Smbios/MDR_V2.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Smbios/MDR_V2.errors.yaml', meson.project_source_root() / 'xyz/openbmc_project/Smbios/MDR_V2.interface.yaml',  ],
     output: [ 'error.cpp', 'error.hpp', 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Smbios/MDR_V2',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Smbios/meson.build b/gen/xyz/openbmc_project/Smbios/meson.build
index 95c6f0d..9183c60 100644
--- a/gen/xyz/openbmc_project/Smbios/meson.build
+++ b/gen/xyz/openbmc_project/Smbios/meson.build
@@ -2,13 +2,13 @@
 subdir('MDR_V2')
 generated_others += custom_target(
     'xyz/openbmc_project/Smbios/MDR_V2__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Smbios/MDR_V2.errors.yaml', meson.source_root() / 'xyz/openbmc_project/Smbios/MDR_V2.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Smbios/MDR_V2.errors.yaml', meson.project_source_root() / 'xyz/openbmc_project/Smbios/MDR_V2.interface.yaml',  ],
     output: [ 'MDR_V2.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Smbios/MDR_V2',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Software/Activation/meson.build b/gen/xyz/openbmc_project/Software/Activation/meson.build
index 21c5ba4..0b6f15c 100644
--- a/gen/xyz/openbmc_project/Software/Activation/meson.build
+++ b/gen/xyz/openbmc_project/Software/Activation/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Software/Activation__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Software/Activation.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Software/Activation.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Software/Activation',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Software/ActivationBlocksTransition/meson.build b/gen/xyz/openbmc_project/Software/ActivationBlocksTransition/meson.build
index 8bb4b44..96adfc6 100644
--- a/gen/xyz/openbmc_project/Software/ActivationBlocksTransition/meson.build
+++ b/gen/xyz/openbmc_project/Software/ActivationBlocksTransition/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Software/ActivationBlocksTransition__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Software/ActivationBlocksTransition.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Software/ActivationBlocksTransition.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Software/ActivationBlocksTransition',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Software/ActivationProgress/meson.build b/gen/xyz/openbmc_project/Software/ActivationProgress/meson.build
index 0a7e497..d2b9219 100644
--- a/gen/xyz/openbmc_project/Software/ActivationProgress/meson.build
+++ b/gen/xyz/openbmc_project/Software/ActivationProgress/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Software/ActivationProgress__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Software/ActivationProgress.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Software/ActivationProgress.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Software/ActivationProgress',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Software/ApplyOptions/meson.build b/gen/xyz/openbmc_project/Software/ApplyOptions/meson.build
index 2e92a86..ada85d3 100644
--- a/gen/xyz/openbmc_project/Software/ApplyOptions/meson.build
+++ b/gen/xyz/openbmc_project/Software/ApplyOptions/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Software/ApplyOptions__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Software/ApplyOptions.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Software/ApplyOptions.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Software/ApplyOptions',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Software/ApplyTime/meson.build b/gen/xyz/openbmc_project/Software/ApplyTime/meson.build
index 59accff..a7a1b8e 100644
--- a/gen/xyz/openbmc_project/Software/ApplyTime/meson.build
+++ b/gen/xyz/openbmc_project/Software/ApplyTime/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Software/ApplyTime__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Software/ApplyTime.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Software/ApplyTime.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Software/ApplyTime',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Software/ExtendedVersion/meson.build b/gen/xyz/openbmc_project/Software/ExtendedVersion/meson.build
index 10f0024..3aecf76 100644
--- a/gen/xyz/openbmc_project/Software/ExtendedVersion/meson.build
+++ b/gen/xyz/openbmc_project/Software/ExtendedVersion/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Software/ExtendedVersion__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Software/ExtendedVersion.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Software/ExtendedVersion.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Software/ExtendedVersion',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Software/RedundancyPriority/meson.build b/gen/xyz/openbmc_project/Software/RedundancyPriority/meson.build
index 79c24c0..7c64ca7 100644
--- a/gen/xyz/openbmc_project/Software/RedundancyPriority/meson.build
+++ b/gen/xyz/openbmc_project/Software/RedundancyPriority/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Software/RedundancyPriority__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Software/RedundancyPriority.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Software/RedundancyPriority.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Software/RedundancyPriority',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Software/RequestedRedundancyPriority/meson.build b/gen/xyz/openbmc_project/Software/RequestedRedundancyPriority/meson.build
index 765ac94..f924121 100644
--- a/gen/xyz/openbmc_project/Software/RequestedRedundancyPriority/meson.build
+++ b/gen/xyz/openbmc_project/Software/RequestedRedundancyPriority/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Software/RequestedRedundancyPriority__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Software/RequestedRedundancyPriority.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Software/RequestedRedundancyPriority.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Software/RequestedRedundancyPriority',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Software/Version/meson.build b/gen/xyz/openbmc_project/Software/Version/meson.build
index b66865e..e4e8a4d 100644
--- a/gen/xyz/openbmc_project/Software/Version/meson.build
+++ b/gen/xyz/openbmc_project/Software/Version/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Software/Version__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Software/Version.errors.yaml', meson.source_root() / 'xyz/openbmc_project/Software/Version.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Software/Version.errors.yaml', meson.project_source_root() / 'xyz/openbmc_project/Software/Version.interface.yaml',  ],
     output: [ 'error.cpp', 'error.hpp', 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Software/Version',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Software/meson.build b/gen/xyz/openbmc_project/Software/meson.build
index 30896f9..685ba10 100644
--- a/gen/xyz/openbmc_project/Software/meson.build
+++ b/gen/xyz/openbmc_project/Software/meson.build
@@ -2,13 +2,13 @@
 subdir('Activation')
 generated_others += custom_target(
     'xyz/openbmc_project/Software/Activation__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Software/Activation.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Software/Activation.interface.yaml',  ],
     output: [ 'Activation.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Software/Activation',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('ActivationBlocksTransition')
 generated_others += custom_target(
     'xyz/openbmc_project/Software/ActivationBlocksTransition__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Software/ActivationBlocksTransition.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Software/ActivationBlocksTransition.interface.yaml',  ],
     output: [ 'ActivationBlocksTransition.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Software/ActivationBlocksTransition',
     ],
     build_by_default: true,
@@ -32,13 +32,13 @@
 subdir('ActivationProgress')
 generated_others += custom_target(
     'xyz/openbmc_project/Software/ActivationProgress__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Software/ActivationProgress.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Software/ActivationProgress.interface.yaml',  ],
     output: [ 'ActivationProgress.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Software/ActivationProgress',
     ],
     build_by_default: true,
@@ -47,13 +47,13 @@
 subdir('ApplyOptions')
 generated_others += custom_target(
     'xyz/openbmc_project/Software/ApplyOptions__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Software/ApplyOptions.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Software/ApplyOptions.interface.yaml',  ],
     output: [ 'ApplyOptions.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Software/ApplyOptions',
     ],
     build_by_default: true,
@@ -62,13 +62,13 @@
 subdir('ApplyTime')
 generated_others += custom_target(
     'xyz/openbmc_project/Software/ApplyTime__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Software/ApplyTime.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Software/ApplyTime.interface.yaml',  ],
     output: [ 'ApplyTime.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Software/ApplyTime',
     ],
     build_by_default: true,
@@ -77,13 +77,13 @@
 subdir('ExtendedVersion')
 generated_others += custom_target(
     'xyz/openbmc_project/Software/ExtendedVersion__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Software/ExtendedVersion.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Software/ExtendedVersion.interface.yaml',  ],
     output: [ 'ExtendedVersion.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Software/ExtendedVersion',
     ],
     build_by_default: true,
@@ -92,13 +92,13 @@
 subdir('RedundancyPriority')
 generated_others += custom_target(
     'xyz/openbmc_project/Software/RedundancyPriority__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Software/RedundancyPriority.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Software/RedundancyPriority.interface.yaml',  ],
     output: [ 'RedundancyPriority.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Software/RedundancyPriority',
     ],
     build_by_default: true,
@@ -107,13 +107,13 @@
 subdir('RequestedRedundancyPriority')
 generated_others += custom_target(
     'xyz/openbmc_project/Software/RequestedRedundancyPriority__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Software/RequestedRedundancyPriority.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Software/RequestedRedundancyPriority.interface.yaml',  ],
     output: [ 'RequestedRedundancyPriority.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Software/RequestedRedundancyPriority',
     ],
     build_by_default: true,
@@ -122,13 +122,13 @@
 subdir('Version')
 generated_others += custom_target(
     'xyz/openbmc_project/Software/Version__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Software/Version.errors.yaml', meson.source_root() / 'xyz/openbmc_project/Software/Version.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Software/Version.errors.yaml', meson.project_source_root() / 'xyz/openbmc_project/Software/Version.interface.yaml',  ],
     output: [ 'Version.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Software/Version',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/State/BMC/meson.build b/gen/xyz/openbmc_project/State/BMC/meson.build
index 0f300cb..a40bcf4 100644
--- a/gen/xyz/openbmc_project/State/BMC/meson.build
+++ b/gen/xyz/openbmc_project/State/BMC/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/State/BMC__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/BMC.errors.yaml', meson.source_root() / 'xyz/openbmc_project/State/BMC.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/BMC.errors.yaml', meson.project_source_root() / 'xyz/openbmc_project/State/BMC.interface.yaml',  ],
     output: [ 'error.cpp', 'error.hpp', 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/BMC',
     ],
 )
diff --git a/gen/xyz/openbmc_project/State/BMCRedundancy/meson.build b/gen/xyz/openbmc_project/State/BMCRedundancy/meson.build
index c00b356..afb48ce 100644
--- a/gen/xyz/openbmc_project/State/BMCRedundancy/meson.build
+++ b/gen/xyz/openbmc_project/State/BMCRedundancy/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/State/BMCRedundancy__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/BMCRedundancy.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/BMCRedundancy.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/BMCRedundancy',
     ],
 )
diff --git a/gen/xyz/openbmc_project/State/Boot/PostCode/meson.build b/gen/xyz/openbmc_project/State/Boot/PostCode/meson.build
index 3d0d310..c0fc32c 100644
--- a/gen/xyz/openbmc_project/State/Boot/PostCode/meson.build
+++ b/gen/xyz/openbmc_project/State/Boot/PostCode/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/State/Boot/PostCode__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/Boot/PostCode.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/Boot/PostCode.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/Boot/PostCode',
     ],
 )
diff --git a/gen/xyz/openbmc_project/State/Boot/Progress/meson.build b/gen/xyz/openbmc_project/State/Boot/Progress/meson.build
index 8f9f2f9..ad00832 100644
--- a/gen/xyz/openbmc_project/State/Boot/Progress/meson.build
+++ b/gen/xyz/openbmc_project/State/Boot/Progress/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/State/Boot/Progress__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/Boot/Progress.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/Boot/Progress.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/Boot/Progress',
     ],
 )
diff --git a/gen/xyz/openbmc_project/State/Boot/Raw/meson.build b/gen/xyz/openbmc_project/State/Boot/Raw/meson.build
index 795da1a..d6111b3 100644
--- a/gen/xyz/openbmc_project/State/Boot/Raw/meson.build
+++ b/gen/xyz/openbmc_project/State/Boot/Raw/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/State/Boot/Raw__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/Boot/Raw.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/Boot/Raw.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/Boot/Raw',
     ],
 )
diff --git a/gen/xyz/openbmc_project/State/Boot/meson.build b/gen/xyz/openbmc_project/State/Boot/meson.build
index d875949..c5ce53c 100644
--- a/gen/xyz/openbmc_project/State/Boot/meson.build
+++ b/gen/xyz/openbmc_project/State/Boot/meson.build
@@ -2,13 +2,13 @@
 subdir('PostCode')
 generated_others += custom_target(
     'xyz/openbmc_project/State/Boot/PostCode__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/Boot/PostCode.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/Boot/PostCode.interface.yaml',  ],
     output: [ 'PostCode.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/Boot/PostCode',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('Progress')
 generated_others += custom_target(
     'xyz/openbmc_project/State/Boot/Progress__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/Boot/Progress.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/Boot/Progress.interface.yaml',  ],
     output: [ 'Progress.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/Boot/Progress',
     ],
     build_by_default: true,
@@ -32,13 +32,13 @@
 subdir('Raw')
 generated_others += custom_target(
     'xyz/openbmc_project/State/Boot/Raw__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/Boot/Raw.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/Boot/Raw.interface.yaml',  ],
     output: [ 'Raw.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/Boot/Raw',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/State/Chassis/meson.build b/gen/xyz/openbmc_project/State/Chassis/meson.build
index cc25627..4f0547d 100644
--- a/gen/xyz/openbmc_project/State/Chassis/meson.build
+++ b/gen/xyz/openbmc_project/State/Chassis/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/State/Chassis__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/Chassis.errors.yaml', meson.source_root() / 'xyz/openbmc_project/State/Chassis.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/Chassis.errors.yaml', meson.project_source_root() / 'xyz/openbmc_project/State/Chassis.interface.yaml',  ],
     output: [ 'error.cpp', 'error.hpp', 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/Chassis',
     ],
 )
diff --git a/gen/xyz/openbmc_project/State/Decorator/Availability/meson.build b/gen/xyz/openbmc_project/State/Decorator/Availability/meson.build
index 9592865..6e71c68 100644
--- a/gen/xyz/openbmc_project/State/Decorator/Availability/meson.build
+++ b/gen/xyz/openbmc_project/State/Decorator/Availability/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/State/Decorator/Availability__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/Decorator/Availability.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/Decorator/Availability.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/Decorator/Availability',
     ],
 )
diff --git a/gen/xyz/openbmc_project/State/Decorator/OperationalStatus/meson.build b/gen/xyz/openbmc_project/State/Decorator/OperationalStatus/meson.build
index 0d9fce3..f2d6ad4 100644
--- a/gen/xyz/openbmc_project/State/Decorator/OperationalStatus/meson.build
+++ b/gen/xyz/openbmc_project/State/Decorator/OperationalStatus/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/State/Decorator/OperationalStatus__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/Decorator/OperationalStatus.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/Decorator/OperationalStatus.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/Decorator/OperationalStatus',
     ],
 )
diff --git a/gen/xyz/openbmc_project/State/Decorator/meson.build b/gen/xyz/openbmc_project/State/Decorator/meson.build
index 5c76f88..b2200b6 100644
--- a/gen/xyz/openbmc_project/State/Decorator/meson.build
+++ b/gen/xyz/openbmc_project/State/Decorator/meson.build
@@ -2,13 +2,13 @@
 subdir('Availability')
 generated_others += custom_target(
     'xyz/openbmc_project/State/Decorator/Availability__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/Decorator/Availability.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/Decorator/Availability.interface.yaml',  ],
     output: [ 'Availability.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/Decorator/Availability',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('OperationalStatus')
 generated_others += custom_target(
     'xyz/openbmc_project/State/Decorator/OperationalStatus__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/Decorator/OperationalStatus.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/Decorator/OperationalStatus.interface.yaml',  ],
     output: [ 'OperationalStatus.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/Decorator/OperationalStatus',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/State/Drive/meson.build b/gen/xyz/openbmc_project/State/Drive/meson.build
index e12f3ad..74f9345 100644
--- a/gen/xyz/openbmc_project/State/Drive/meson.build
+++ b/gen/xyz/openbmc_project/State/Drive/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/State/Drive__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/Drive.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/Drive.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/Drive',
     ],
 )
diff --git a/gen/xyz/openbmc_project/State/Host/meson.build b/gen/xyz/openbmc_project/State/Host/meson.build
index 7846c76..f3d3d4d 100644
--- a/gen/xyz/openbmc_project/State/Host/meson.build
+++ b/gen/xyz/openbmc_project/State/Host/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/State/Host__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/Host.errors.yaml', meson.source_root() / 'xyz/openbmc_project/State/Host.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/Host.errors.yaml', meson.project_source_root() / 'xyz/openbmc_project/State/Host.interface.yaml',  ],
     output: [ 'error.cpp', 'error.hpp', 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/Host',
     ],
 )
diff --git a/gen/xyz/openbmc_project/State/OperatingSystem/Status/meson.build b/gen/xyz/openbmc_project/State/OperatingSystem/Status/meson.build
index 061d397..312d760 100644
--- a/gen/xyz/openbmc_project/State/OperatingSystem/Status/meson.build
+++ b/gen/xyz/openbmc_project/State/OperatingSystem/Status/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/State/OperatingSystem/Status__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/OperatingSystem/Status.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/OperatingSystem/Status.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/OperatingSystem/Status',
     ],
 )
diff --git a/gen/xyz/openbmc_project/State/OperatingSystem/meson.build b/gen/xyz/openbmc_project/State/OperatingSystem/meson.build
index efe1bf9..fea8744 100644
--- a/gen/xyz/openbmc_project/State/OperatingSystem/meson.build
+++ b/gen/xyz/openbmc_project/State/OperatingSystem/meson.build
@@ -2,13 +2,13 @@
 subdir('Status')
 generated_others += custom_target(
     'xyz/openbmc_project/State/OperatingSystem/Status__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/OperatingSystem/Status.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/OperatingSystem/Status.interface.yaml',  ],
     output: [ 'Status.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/OperatingSystem/Status',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/State/PowerOnHours/meson.build b/gen/xyz/openbmc_project/State/PowerOnHours/meson.build
index 2d74880..7367fec 100644
--- a/gen/xyz/openbmc_project/State/PowerOnHours/meson.build
+++ b/gen/xyz/openbmc_project/State/PowerOnHours/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/State/PowerOnHours__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/PowerOnHours.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/PowerOnHours.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/PowerOnHours',
     ],
 )
diff --git a/gen/xyz/openbmc_project/State/ScheduledHostTransition/meson.build b/gen/xyz/openbmc_project/State/ScheduledHostTransition/meson.build
index 85c7cbf..6088257 100644
--- a/gen/xyz/openbmc_project/State/ScheduledHostTransition/meson.build
+++ b/gen/xyz/openbmc_project/State/ScheduledHostTransition/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/State/ScheduledHostTransition__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/ScheduledHostTransition.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/ScheduledHostTransition.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/ScheduledHostTransition',
     ],
 )
diff --git a/gen/xyz/openbmc_project/State/Shutdown/Inventory/meson.build b/gen/xyz/openbmc_project/State/Shutdown/Inventory/meson.build
index 969d2c5..82bf5f5 100644
--- a/gen/xyz/openbmc_project/State/Shutdown/Inventory/meson.build
+++ b/gen/xyz/openbmc_project/State/Shutdown/Inventory/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/State/Shutdown/Inventory__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/Shutdown/Inventory.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/Shutdown/Inventory.errors.yaml',  ],
     output: [ 'error.cpp', 'error.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/Shutdown/Inventory',
     ],
 )
diff --git a/gen/xyz/openbmc_project/State/Shutdown/Power/meson.build b/gen/xyz/openbmc_project/State/Shutdown/Power/meson.build
index 345ac91..75d6374 100644
--- a/gen/xyz/openbmc_project/State/Shutdown/Power/meson.build
+++ b/gen/xyz/openbmc_project/State/Shutdown/Power/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/State/Shutdown/Power__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/Shutdown/Power.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/Shutdown/Power.errors.yaml',  ],
     output: [ 'error.cpp', 'error.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/Shutdown/Power',
     ],
 )
diff --git a/gen/xyz/openbmc_project/State/Shutdown/ThermalEvent/meson.build b/gen/xyz/openbmc_project/State/Shutdown/ThermalEvent/meson.build
index 15438e4..502e618 100644
--- a/gen/xyz/openbmc_project/State/Shutdown/ThermalEvent/meson.build
+++ b/gen/xyz/openbmc_project/State/Shutdown/ThermalEvent/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/State/Shutdown/ThermalEvent__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/Shutdown/ThermalEvent.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/Shutdown/ThermalEvent.errors.yaml',  ],
     output: [ 'error.cpp', 'error.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/Shutdown/ThermalEvent',
     ],
 )
diff --git a/gen/xyz/openbmc_project/State/Shutdown/meson.build b/gen/xyz/openbmc_project/State/Shutdown/meson.build
index be8c9d4..8822511 100644
--- a/gen/xyz/openbmc_project/State/Shutdown/meson.build
+++ b/gen/xyz/openbmc_project/State/Shutdown/meson.build
@@ -2,13 +2,13 @@
 subdir('Inventory')
 generated_others += custom_target(
     'xyz/openbmc_project/State/Shutdown/Inventory__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/Shutdown/Inventory.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/Shutdown/Inventory.errors.yaml',  ],
     output: [ 'Inventory.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/Shutdown/Inventory',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('Power')
 generated_others += custom_target(
     'xyz/openbmc_project/State/Shutdown/Power__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/Shutdown/Power.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/Shutdown/Power.errors.yaml',  ],
     output: [ 'Power.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/Shutdown/Power',
     ],
     build_by_default: true,
@@ -32,13 +32,13 @@
 subdir('ThermalEvent')
 generated_others += custom_target(
     'xyz/openbmc_project/State/Shutdown/ThermalEvent__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/Shutdown/ThermalEvent.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/Shutdown/ThermalEvent.errors.yaml',  ],
     output: [ 'ThermalEvent.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/Shutdown/ThermalEvent',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/State/SystemdTarget/meson.build b/gen/xyz/openbmc_project/State/SystemdTarget/meson.build
index cd14f65..2af8de3 100644
--- a/gen/xyz/openbmc_project/State/SystemdTarget/meson.build
+++ b/gen/xyz/openbmc_project/State/SystemdTarget/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/State/SystemdTarget__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/SystemdTarget.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/SystemdTarget.errors.yaml',  ],
     output: [ 'error.cpp', 'error.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/SystemdTarget',
     ],
 )
diff --git a/gen/xyz/openbmc_project/State/Watchdog/meson.build b/gen/xyz/openbmc_project/State/Watchdog/meson.build
index a17e654..4ba1276 100644
--- a/gen/xyz/openbmc_project/State/Watchdog/meson.build
+++ b/gen/xyz/openbmc_project/State/Watchdog/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/State/Watchdog__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/Watchdog.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/Watchdog.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/Watchdog',
     ],
 )
diff --git a/gen/xyz/openbmc_project/State/meson.build b/gen/xyz/openbmc_project/State/meson.build
index d94d873..49ae284 100644
--- a/gen/xyz/openbmc_project/State/meson.build
+++ b/gen/xyz/openbmc_project/State/meson.build
@@ -2,13 +2,13 @@
 subdir('BMC')
 generated_others += custom_target(
     'xyz/openbmc_project/State/BMC__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/BMC.errors.yaml', meson.source_root() / 'xyz/openbmc_project/State/BMC.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/BMC.errors.yaml', meson.project_source_root() / 'xyz/openbmc_project/State/BMC.interface.yaml',  ],
     output: [ 'BMC.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/BMC',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('BMCRedundancy')
 generated_others += custom_target(
     'xyz/openbmc_project/State/BMCRedundancy__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/BMCRedundancy.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/BMCRedundancy.interface.yaml',  ],
     output: [ 'BMCRedundancy.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/BMCRedundancy',
     ],
     build_by_default: true,
@@ -33,13 +33,13 @@
 subdir('Chassis')
 generated_others += custom_target(
     'xyz/openbmc_project/State/Chassis__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/Chassis.errors.yaml', meson.source_root() / 'xyz/openbmc_project/State/Chassis.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/Chassis.errors.yaml', meson.project_source_root() / 'xyz/openbmc_project/State/Chassis.interface.yaml',  ],
     output: [ 'Chassis.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/Chassis',
     ],
     build_by_default: true,
@@ -49,13 +49,13 @@
 subdir('Drive')
 generated_others += custom_target(
     'xyz/openbmc_project/State/Drive__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/Drive.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/Drive.interface.yaml',  ],
     output: [ 'Drive.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/Drive',
     ],
     build_by_default: true,
@@ -64,13 +64,13 @@
 subdir('Host')
 generated_others += custom_target(
     'xyz/openbmc_project/State/Host__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/Host.errors.yaml', meson.source_root() / 'xyz/openbmc_project/State/Host.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/Host.errors.yaml', meson.project_source_root() / 'xyz/openbmc_project/State/Host.interface.yaml',  ],
     output: [ 'Host.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/Host',
     ],
     build_by_default: true,
@@ -80,13 +80,13 @@
 subdir('PowerOnHours')
 generated_others += custom_target(
     'xyz/openbmc_project/State/PowerOnHours__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/PowerOnHours.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/PowerOnHours.interface.yaml',  ],
     output: [ 'PowerOnHours.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/PowerOnHours',
     ],
     build_by_default: true,
@@ -95,13 +95,13 @@
 subdir('ScheduledHostTransition')
 generated_others += custom_target(
     'xyz/openbmc_project/State/ScheduledHostTransition__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/ScheduledHostTransition.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/ScheduledHostTransition.interface.yaml',  ],
     output: [ 'ScheduledHostTransition.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/ScheduledHostTransition',
     ],
     build_by_default: true,
@@ -111,13 +111,13 @@
 subdir('SystemdTarget')
 generated_others += custom_target(
     'xyz/openbmc_project/State/SystemdTarget__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/SystemdTarget.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/SystemdTarget.errors.yaml',  ],
     output: [ 'SystemdTarget.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/SystemdTarget',
     ],
     build_by_default: true,
@@ -126,13 +126,13 @@
 subdir('Watchdog')
 generated_others += custom_target(
     'xyz/openbmc_project/State/Watchdog__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/State/Watchdog.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/State/Watchdog.interface.yaml',  ],
     output: [ 'Watchdog.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/State/Watchdog',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Telemetry/Report/meson.build b/gen/xyz/openbmc_project/Telemetry/Report/meson.build
index 208a11e..8ee2764 100644
--- a/gen/xyz/openbmc_project/Telemetry/Report/meson.build
+++ b/gen/xyz/openbmc_project/Telemetry/Report/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Telemetry/Report__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Telemetry/Report.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Telemetry/Report.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Telemetry/Report',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Telemetry/ReportManager/meson.build b/gen/xyz/openbmc_project/Telemetry/ReportManager/meson.build
index 757eb64..c3fad4c 100644
--- a/gen/xyz/openbmc_project/Telemetry/ReportManager/meson.build
+++ b/gen/xyz/openbmc_project/Telemetry/ReportManager/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Telemetry/ReportManager__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Telemetry/ReportManager.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Telemetry/ReportManager.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Telemetry/ReportManager',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Telemetry/Trigger/meson.build b/gen/xyz/openbmc_project/Telemetry/Trigger/meson.build
index 3287eaa..c7d77a5 100644
--- a/gen/xyz/openbmc_project/Telemetry/Trigger/meson.build
+++ b/gen/xyz/openbmc_project/Telemetry/Trigger/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Telemetry/Trigger__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Telemetry/Trigger.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Telemetry/Trigger.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Telemetry/Trigger',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Telemetry/TriggerManager/meson.build b/gen/xyz/openbmc_project/Telemetry/TriggerManager/meson.build
index 478be8d..010a60c 100644
--- a/gen/xyz/openbmc_project/Telemetry/TriggerManager/meson.build
+++ b/gen/xyz/openbmc_project/Telemetry/TriggerManager/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Telemetry/TriggerManager__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Telemetry/TriggerManager.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Telemetry/TriggerManager.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Telemetry/TriggerManager',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Telemetry/meson.build b/gen/xyz/openbmc_project/Telemetry/meson.build
index e35dc26..d619e1d 100644
--- a/gen/xyz/openbmc_project/Telemetry/meson.build
+++ b/gen/xyz/openbmc_project/Telemetry/meson.build
@@ -2,13 +2,13 @@
 subdir('Report')
 generated_others += custom_target(
     'xyz/openbmc_project/Telemetry/Report__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Telemetry/Report.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Telemetry/Report.interface.yaml',  ],
     output: [ 'Report.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Telemetry/Report',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('ReportManager')
 generated_others += custom_target(
     'xyz/openbmc_project/Telemetry/ReportManager__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Telemetry/ReportManager.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Telemetry/ReportManager.interface.yaml',  ],
     output: [ 'ReportManager.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Telemetry/ReportManager',
     ],
     build_by_default: true,
@@ -32,13 +32,13 @@
 subdir('Trigger')
 generated_others += custom_target(
     'xyz/openbmc_project/Telemetry/Trigger__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Telemetry/Trigger.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Telemetry/Trigger.interface.yaml',  ],
     output: [ 'Trigger.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Telemetry/Trigger',
     ],
     build_by_default: true,
@@ -47,13 +47,13 @@
 subdir('TriggerManager')
 generated_others += custom_target(
     'xyz/openbmc_project/Telemetry/TriggerManager__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Telemetry/TriggerManager.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Telemetry/TriggerManager.interface.yaml',  ],
     output: [ 'TriggerManager.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Telemetry/TriggerManager',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/Time/EpochTime/meson.build b/gen/xyz/openbmc_project/Time/EpochTime/meson.build
index d6895da..d2a073b 100644
--- a/gen/xyz/openbmc_project/Time/EpochTime/meson.build
+++ b/gen/xyz/openbmc_project/Time/EpochTime/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Time/EpochTime__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Time/EpochTime.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Time/EpochTime.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Time/EpochTime',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Time/Synchronization/meson.build b/gen/xyz/openbmc_project/Time/Synchronization/meson.build
index f3f5658..98d2623 100644
--- a/gen/xyz/openbmc_project/Time/Synchronization/meson.build
+++ b/gen/xyz/openbmc_project/Time/Synchronization/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Time/Synchronization__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Time/Synchronization.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Time/Synchronization.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Time/Synchronization',
     ],
 )
diff --git a/gen/xyz/openbmc_project/Time/meson.build b/gen/xyz/openbmc_project/Time/meson.build
index 54d1cf6..4db94d0 100644
--- a/gen/xyz/openbmc_project/Time/meson.build
+++ b/gen/xyz/openbmc_project/Time/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Time__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Time.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Time.errors.yaml',  ],
     output: [ 'error.cpp', 'error.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Time',
     ],
 )
@@ -15,13 +15,13 @@
 subdir('EpochTime')
 generated_others += custom_target(
     'xyz/openbmc_project/Time/EpochTime__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Time/EpochTime.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Time/EpochTime.interface.yaml',  ],
     output: [ 'EpochTime.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Time/EpochTime',
     ],
     build_by_default: true,
@@ -30,13 +30,13 @@
 subdir('Synchronization')
 generated_others += custom_target(
     'xyz/openbmc_project/Time/Synchronization__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Time/Synchronization.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Time/Synchronization.interface.yaml',  ],
     output: [ 'Synchronization.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Time/Synchronization',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/User/AccountPolicy/meson.build b/gen/xyz/openbmc_project/User/AccountPolicy/meson.build
index 582268f..0ba2e1f 100644
--- a/gen/xyz/openbmc_project/User/AccountPolicy/meson.build
+++ b/gen/xyz/openbmc_project/User/AccountPolicy/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/User/AccountPolicy__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/User/AccountPolicy.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/User/AccountPolicy.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/User/AccountPolicy',
     ],
 )
diff --git a/gen/xyz/openbmc_project/User/Attributes/meson.build b/gen/xyz/openbmc_project/User/Attributes/meson.build
index d9fb7f0..599f8ff 100644
--- a/gen/xyz/openbmc_project/User/Attributes/meson.build
+++ b/gen/xyz/openbmc_project/User/Attributes/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/User/Attributes__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/User/Attributes.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/User/Attributes.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/User/Attributes',
     ],
 )
diff --git a/gen/xyz/openbmc_project/User/Common/meson.build b/gen/xyz/openbmc_project/User/Common/meson.build
index 7714d8a..a88ae48 100644
--- a/gen/xyz/openbmc_project/User/Common/meson.build
+++ b/gen/xyz/openbmc_project/User/Common/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/User/Common__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/User/Common.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/User/Common.errors.yaml',  ],
     output: [ 'error.cpp', 'error.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/User/Common',
     ],
 )
diff --git a/gen/xyz/openbmc_project/User/Ldap/Config/meson.build b/gen/xyz/openbmc_project/User/Ldap/Config/meson.build
index fecb39e..be2d228 100644
--- a/gen/xyz/openbmc_project/User/Ldap/Config/meson.build
+++ b/gen/xyz/openbmc_project/User/Ldap/Config/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/User/Ldap/Config__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/User/Ldap/Config.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/User/Ldap/Config.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/User/Ldap/Config',
     ],
 )
diff --git a/gen/xyz/openbmc_project/User/Ldap/Create/meson.build b/gen/xyz/openbmc_project/User/Ldap/Create/meson.build
index de2f4c3..9becc7c 100644
--- a/gen/xyz/openbmc_project/User/Ldap/Create/meson.build
+++ b/gen/xyz/openbmc_project/User/Ldap/Create/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/User/Ldap/Create__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/User/Ldap/Create.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/User/Ldap/Create.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/User/Ldap/Create',
     ],
 )
diff --git a/gen/xyz/openbmc_project/User/Ldap/meson.build b/gen/xyz/openbmc_project/User/Ldap/meson.build
index 97ebb3e..1a47412 100644
--- a/gen/xyz/openbmc_project/User/Ldap/meson.build
+++ b/gen/xyz/openbmc_project/User/Ldap/meson.build
@@ -2,13 +2,13 @@
 subdir('Config')
 generated_others += custom_target(
     'xyz/openbmc_project/User/Ldap/Config__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/User/Ldap/Config.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/User/Ldap/Config.interface.yaml',  ],
     output: [ 'Config.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/User/Ldap/Config',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('Create')
 generated_others += custom_target(
     'xyz/openbmc_project/User/Ldap/Create__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/User/Ldap/Create.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/User/Ldap/Create.interface.yaml',  ],
     output: [ 'Create.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/User/Ldap/Create',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/User/Manager/meson.build b/gen/xyz/openbmc_project/User/Manager/meson.build
index e4ab99b..9f8f4a1 100644
--- a/gen/xyz/openbmc_project/User/Manager/meson.build
+++ b/gen/xyz/openbmc_project/User/Manager/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/User/Manager__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/User/Manager.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/User/Manager.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/User/Manager',
     ],
 )
diff --git a/gen/xyz/openbmc_project/User/PrivilegeMapper/meson.build b/gen/xyz/openbmc_project/User/PrivilegeMapper/meson.build
index e8ad3a4..e0c2d40 100644
--- a/gen/xyz/openbmc_project/User/PrivilegeMapper/meson.build
+++ b/gen/xyz/openbmc_project/User/PrivilegeMapper/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/User/PrivilegeMapper__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/User/PrivilegeMapper.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/User/PrivilegeMapper.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/User/PrivilegeMapper',
     ],
 )
diff --git a/gen/xyz/openbmc_project/User/PrivilegeMapperEntry/meson.build b/gen/xyz/openbmc_project/User/PrivilegeMapperEntry/meson.build
index 773a3a9..3e746a3 100644
--- a/gen/xyz/openbmc_project/User/PrivilegeMapperEntry/meson.build
+++ b/gen/xyz/openbmc_project/User/PrivilegeMapperEntry/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/User/PrivilegeMapperEntry__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/User/PrivilegeMapperEntry.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/User/PrivilegeMapperEntry.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/User/PrivilegeMapperEntry',
     ],
 )
diff --git a/gen/xyz/openbmc_project/User/meson.build b/gen/xyz/openbmc_project/User/meson.build
index 0cae12b..31798f9 100644
--- a/gen/xyz/openbmc_project/User/meson.build
+++ b/gen/xyz/openbmc_project/User/meson.build
@@ -2,13 +2,13 @@
 subdir('AccountPolicy')
 generated_others += custom_target(
     'xyz/openbmc_project/User/AccountPolicy__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/User/AccountPolicy.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/User/AccountPolicy.interface.yaml',  ],
     output: [ 'AccountPolicy.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/User/AccountPolicy',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('Attributes')
 generated_others += custom_target(
     'xyz/openbmc_project/User/Attributes__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/User/Attributes.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/User/Attributes.interface.yaml',  ],
     output: [ 'Attributes.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/User/Attributes',
     ],
     build_by_default: true,
@@ -32,13 +32,13 @@
 subdir('Common')
 generated_others += custom_target(
     'xyz/openbmc_project/User/Common__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/User/Common.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/User/Common.errors.yaml',  ],
     output: [ 'Common.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/User/Common',
     ],
     build_by_default: true,
@@ -48,13 +48,13 @@
 subdir('Manager')
 generated_others += custom_target(
     'xyz/openbmc_project/User/Manager__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/User/Manager.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/User/Manager.interface.yaml',  ],
     output: [ 'Manager.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/User/Manager',
     ],
     build_by_default: true,
@@ -63,13 +63,13 @@
 subdir('PrivilegeMapper')
 generated_others += custom_target(
     'xyz/openbmc_project/User/PrivilegeMapper__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/User/PrivilegeMapper.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/User/PrivilegeMapper.interface.yaml',  ],
     output: [ 'PrivilegeMapper.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/User/PrivilegeMapper',
     ],
     build_by_default: true,
@@ -78,13 +78,13 @@
 subdir('PrivilegeMapperEntry')
 generated_others += custom_target(
     'xyz/openbmc_project/User/PrivilegeMapperEntry__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/User/PrivilegeMapperEntry.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/User/PrivilegeMapperEntry.interface.yaml',  ],
     output: [ 'PrivilegeMapperEntry.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/User/PrivilegeMapperEntry',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/VirtualMedia/Legacy/meson.build b/gen/xyz/openbmc_project/VirtualMedia/Legacy/meson.build
index ddda57c..185392d 100644
--- a/gen/xyz/openbmc_project/VirtualMedia/Legacy/meson.build
+++ b/gen/xyz/openbmc_project/VirtualMedia/Legacy/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/VirtualMedia/Legacy__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/VirtualMedia/Legacy.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/VirtualMedia/Legacy.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/VirtualMedia/Legacy',
     ],
 )
diff --git a/gen/xyz/openbmc_project/VirtualMedia/MountPoint/meson.build b/gen/xyz/openbmc_project/VirtualMedia/MountPoint/meson.build
index c08b8e5..a096ce2 100644
--- a/gen/xyz/openbmc_project/VirtualMedia/MountPoint/meson.build
+++ b/gen/xyz/openbmc_project/VirtualMedia/MountPoint/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/VirtualMedia/MountPoint__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/VirtualMedia/MountPoint.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/VirtualMedia/MountPoint.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/VirtualMedia/MountPoint',
     ],
 )
diff --git a/gen/xyz/openbmc_project/VirtualMedia/Process/meson.build b/gen/xyz/openbmc_project/VirtualMedia/Process/meson.build
index 30e3f41..baaa0e0 100644
--- a/gen/xyz/openbmc_project/VirtualMedia/Process/meson.build
+++ b/gen/xyz/openbmc_project/VirtualMedia/Process/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/VirtualMedia/Process__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/VirtualMedia/Process.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/VirtualMedia/Process.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/VirtualMedia/Process',
     ],
 )
diff --git a/gen/xyz/openbmc_project/VirtualMedia/Proxy/meson.build b/gen/xyz/openbmc_project/VirtualMedia/Proxy/meson.build
index 1b082d4..1dd0206 100644
--- a/gen/xyz/openbmc_project/VirtualMedia/Proxy/meson.build
+++ b/gen/xyz/openbmc_project/VirtualMedia/Proxy/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/VirtualMedia/Proxy__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/VirtualMedia/Proxy.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/VirtualMedia/Proxy.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/VirtualMedia/Proxy',
     ],
 )
diff --git a/gen/xyz/openbmc_project/VirtualMedia/Stats/meson.build b/gen/xyz/openbmc_project/VirtualMedia/Stats/meson.build
index bf2bd88..74f4ae9 100644
--- a/gen/xyz/openbmc_project/VirtualMedia/Stats/meson.build
+++ b/gen/xyz/openbmc_project/VirtualMedia/Stats/meson.build
@@ -1,13 +1,13 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/VirtualMedia/Stats__cpp'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/VirtualMedia/Stats.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/VirtualMedia/Stats.interface.yaml',  ],
     output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'cpp',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/VirtualMedia/Stats',
     ],
 )
diff --git a/gen/xyz/openbmc_project/VirtualMedia/meson.build b/gen/xyz/openbmc_project/VirtualMedia/meson.build
index 2e3ed91..3b94ba7 100644
--- a/gen/xyz/openbmc_project/VirtualMedia/meson.build
+++ b/gen/xyz/openbmc_project/VirtualMedia/meson.build
@@ -2,13 +2,13 @@
 subdir('Legacy')
 generated_others += custom_target(
     'xyz/openbmc_project/VirtualMedia/Legacy__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/VirtualMedia/Legacy.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/VirtualMedia/Legacy.interface.yaml',  ],
     output: [ 'Legacy.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/VirtualMedia/Legacy',
     ],
     build_by_default: true,
@@ -17,13 +17,13 @@
 subdir('MountPoint')
 generated_others += custom_target(
     'xyz/openbmc_project/VirtualMedia/MountPoint__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/VirtualMedia/MountPoint.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/VirtualMedia/MountPoint.interface.yaml',  ],
     output: [ 'MountPoint.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/VirtualMedia/MountPoint',
     ],
     build_by_default: true,
@@ -32,13 +32,13 @@
 subdir('Process')
 generated_others += custom_target(
     'xyz/openbmc_project/VirtualMedia/Process__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/VirtualMedia/Process.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/VirtualMedia/Process.interface.yaml',  ],
     output: [ 'Process.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/VirtualMedia/Process',
     ],
     build_by_default: true,
@@ -47,13 +47,13 @@
 subdir('Proxy')
 generated_others += custom_target(
     'xyz/openbmc_project/VirtualMedia/Proxy__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/VirtualMedia/Proxy.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/VirtualMedia/Proxy.interface.yaml',  ],
     output: [ 'Proxy.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/VirtualMedia/Proxy',
     ],
     build_by_default: true,
@@ -62,13 +62,13 @@
 subdir('Stats')
 generated_others += custom_target(
     'xyz/openbmc_project/VirtualMedia/Stats__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/VirtualMedia/Stats.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/VirtualMedia/Stats.interface.yaml',  ],
     output: [ 'Stats.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/VirtualMedia/Stats',
     ],
     build_by_default: true,
diff --git a/gen/xyz/openbmc_project/meson.build b/gen/xyz/openbmc_project/meson.build
index 3c4750f..55ffcf7 100644
--- a/gen/xyz/openbmc_project/meson.build
+++ b/gen/xyz/openbmc_project/meson.build
@@ -2,13 +2,13 @@
 subdir('Association')
 generated_others += custom_target(
     'xyz/openbmc_project/Association__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Association.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Association.interface.yaml',  ],
     output: [ 'Association.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Association',
     ],
     build_by_default: true,
@@ -18,13 +18,13 @@
 subdir('Certs')
 generated_others += custom_target(
     'xyz/openbmc_project/Certs__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Certs.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Certs.errors.yaml',  ],
     output: [ 'Certs.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Certs',
     ],
     build_by_default: true,
@@ -36,13 +36,13 @@
 subdir('Common')
 generated_others += custom_target(
     'xyz/openbmc_project/Common__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Common.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Common.errors.yaml',  ],
     output: [ 'Common.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Common',
     ],
     build_by_default: true,
@@ -53,13 +53,13 @@
 subdir('Inventory')
 generated_others += custom_target(
     'xyz/openbmc_project/Inventory__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Inventory.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Inventory.errors.yaml',  ],
     output: [ 'Inventory.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Inventory',
     ],
     build_by_default: true,
@@ -75,13 +75,13 @@
 subdir('ObjectMapper')
 generated_others += custom_target(
     'xyz/openbmc_project/ObjectMapper__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/ObjectMapper.interface.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/ObjectMapper.interface.yaml',  ],
     output: [ 'ObjectMapper.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/ObjectMapper',
     ],
     build_by_default: true,
@@ -92,13 +92,13 @@
 subdir('ScheduledTime')
 generated_others += custom_target(
     'xyz/openbmc_project/ScheduledTime__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/ScheduledTime.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/ScheduledTime.errors.yaml',  ],
     output: [ 'ScheduledTime.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/ScheduledTime',
     ],
     build_by_default: true,
@@ -112,13 +112,13 @@
 subdir('Time')
 generated_others += custom_target(
     'xyz/openbmc_project/Time__markdown'.underscorify(),
-    input: [ meson.source_root() / 'xyz/openbmc_project/Time.errors.yaml',  ],
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Time.errors.yaml',  ],
     output: [ 'Time.md' ],
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),
         '--tool', sdbusplusplus_prog,
-        '--directory', meson.source_root(),
+        '--directory', meson.project_source_root(),
         'xyz/openbmc_project/Time',
     ],
     build_by_default: true,