From daf686508f2ee4711d93e96e5b100e50bf161656 Mon Sep 17 00:00:00 2001
From: Leon Anavi <leon.anavi@konsulko.com>
Date: Wed, 26 Aug 2020 10:52:10 +0300
Subject: [PATCH] doxygen: Fix Python issues for doxygen-native

It fails to compile doxygen-native when /usr/bin/python is a link
to python3 on build host:

| Failed to import the site module
| Traceback (most recent call last):
|   File "/usr/lib64/python3.6/site.py", line 564, in <module>
|     main()
|   File "/usr/lib64/python3.6/site.py", line 550, in main
|     known_paths = addusersitepackages(known_paths)
|   File "/usr/lib64/python3.6/site.py", line 282, in addusersitepackages
|     user_site = getusersitepackages()
|   File "/usr/lib64/python3.6/site.py", line 258, in getusersitepackages
|     user_base = getuserbase() # this will also set USER_BASE
|   File "/usr/lib64/python3.6/site.py", line 248, in getuserbase
|     USER_BASE = get_config_var('userbase')
|   File "/usr/lib64/python3.6/sysconfig.py", line 604, in get_config_var
|     return get_config_vars().get(name)
|   File "/usr/lib64/python3.6/sysconfig.py", line 553, in get_config_vars
|     _init_posix(_CONFIG_VARS)
|   File "/usr/lib64/python3.6/sysconfig.py", line 424, in _init_posix
|     _temp = __import__(name, globals(), locals(), ['build_time_vars'], 0)
| ModuleNotFoundError: No module named '_sysconfigdata'

Replace find_package PythonInterp with Python3 to fix this issue
that it uses python3 from python3-native. And it also replaces the
result variable PYTHON_EXECUTABLE with Python3_EXECUTABLE.

This patch is only needded by doxygen-native.

Updated to apply to release 1.9.1.

Upstream-Status: Inappropriate [oe specific]

Co-Authored-By: Kai Kang <kai.kang@windriver.com>
Signed-off-by: Leon Anavi <leon.anavi@konsulko.com>
Signed-off-by: Randy MacLeod <Randy.MacLeod@windriver.com>

---
 CMakeLists.txt                  |  2 +-
 addon/doxywizard/CMakeLists.txt |  6 +++---
 doc/CMakeLists.txt              |  6 +++---
 examples/CMakeLists.txt         |  4 ++--
 libmscgen/CMakeLists.txt        |  2 +-
 src/CMakeLists.txt              | 10 +++++-----
 testing/CMakeLists.txt          |  4 ++--
 7 files changed, 17 insertions(+), 17 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2455793..28f0d83 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -105,7 +105,7 @@ else ()
 endif ()
 
 find_program(DOT NAMES dot)
-find_package(PythonInterp REQUIRED)
+find_package(Python3 REQUIRED)
 find_package(FLEX REQUIRED)
 find_package(BISON REQUIRED)
 if (BISON_VERSION VERSION_LESS 2.7)
diff --git a/addon/doxywizard/CMakeLists.txt b/addon/doxywizard/CMakeLists.txt
index 63ac8e3..d37d1d0 100644
--- a/addon/doxywizard/CMakeLists.txt
+++ b/addon/doxywizard/CMakeLists.txt
@@ -57,7 +57,7 @@ set_source_files_properties(${GENERATED_SRC_WIZARD}/settings.h PROPERTIES GENERA
 
 # generate version.cpp
 add_custom_command(
-    COMMAND ${PYTHON_EXECUTABLE} ${PROJECT_SOURCE_DIR}/src/version.py ${VERSION} > ${GENERATED_SRC_WIZARD}/version.cpp
+    COMMAND ${Python3_EXECUTABLE} ${PROJECT_SOURCE_DIR}/src/version.py ${VERSION} > ${GENERATED_SRC_WIZARD}/version.cpp
     DEPENDS ${PROJECT_SOURCE_DIR}/VERSION ${PROJECT_SOURCE_DIR}/src/version.py
     OUTPUT ${GENERATED_SRC_WIZARD}/version.cpp
 )
@@ -65,7 +65,7 @@ set_source_files_properties(${GENERATED_SRC_WIZARD}/version.cpp PROPERTIES GENER
 
 # generate configdoc.cpp
 add_custom_command(
-    COMMAND ${PYTHON_EXECUTABLE} ${PROJECT_SOURCE_DIR}/src/configgen.py -wiz ${PROJECT_SOURCE_DIR}/src/config.xml > ${GENERATED_SRC_WIZARD}/configdoc.cpp
+    COMMAND ${Python3_EXECUTABLE} ${PROJECT_SOURCE_DIR}/src/configgen.py -wiz ${PROJECT_SOURCE_DIR}/src/config.xml > ${GENERATED_SRC_WIZARD}/configdoc.cpp
     DEPENDS  ${PROJECT_SOURCE_DIR}/src/configgen.py ${PROJECT_SOURCE_DIR}/src/config.xml
     OUTPUT ${GENERATED_SRC_WIZARD}/configdoc.cpp
 )
@@ -74,7 +74,7 @@ set_source_files_properties(${GENERATED_SRC_WIZARD}/configdoc.cpp PROPERTIES GEN
 set(LEX_FILES config_doxyw)
 foreach(lex_file ${LEX_FILES})
     add_custom_command(
-        COMMAND ${PYTHON_EXECUTABLE} ${PROJECT_SOURCE_DIR}/src/scan_states.py ${PROJECT_SOURCE_DIR}/addon/doxywizard/${lex_file}.l > ${GENERATED_SRC_WIZARD}/${lex_file}.l.h
+        COMMAND ${Python3_EXECUTABLE} ${PROJECT_SOURCE_DIR}/src/scan_states.py ${PROJECT_SOURCE_DIR}/addon/doxywizard/${lex_file}.l > ${GENERATED_SRC_WIZARD}/${lex_file}.l.h
         DEPENDS ${PROJECT_SOURCE_DIR}/src/scan_states.py ${PROJECT_SOURCE_DIR}/addon/doxywizard/${lex_file}.l
         OUTPUT  ${GENERATED_SRC_WIZARD}/${lex_file}.l.h
     )
diff --git a/doc/CMakeLists.txt b/doc/CMakeLists.txt
index ec63ceb..49a2bda 100644
--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@@ -168,7 +168,7 @@ configure_file(${PROJECT_SOURCE_DIR}/doc/doxyindexer.1      ${PROJECT_BINARY_DIR
 
 # doc/language.doc (see tag Doxyfile:INPUT)
 add_custom_command(
-        COMMAND ${PYTHON_EXECUTABLE} translator.py ${PROJECT_SOURCE_DIR}
+        COMMAND ${Python3_EXECUTABLE} translator.py ${PROJECT_SOURCE_DIR}
         DEPENDS ${PROJECT_SOURCE_DIR}/doc/maintainers.txt ${PROJECT_SOURCE_DIR}/doc/language.tpl ${PROJECT_BINARY_DIR}/doc/translator.py ${LANG_FILES}
         OUTPUT language.doc
         WORKING_DIRECTORY ${PROJECT_BINARY_DIR}/doc
@@ -177,7 +177,7 @@ set_source_files_properties(language.doc PROPERTIES GENERATED 1)
 
 # doc/config.doc (see tag Doxyfile:INPUT)
 add_custom_command(
-        COMMAND ${PYTHON_EXECUTABLE}  ${TOP}/src/configgen.py -doc ${TOP}/src/config.xml > config.doc
+        COMMAND ${Python3_EXECUTABLE}  ${TOP}/src/configgen.py -doc ${TOP}/src/config.xml > config.doc
         DEPENDS ${TOP}/src/config.xml ${TOP}/src/configgen.py
         OUTPUT config.doc
         WORKING_DIRECTORY ${PROJECT_BINARY_DIR}/doc/
@@ -228,7 +228,7 @@ add_custom_target(docs_chm
     COMMAND ${CMAKE_COMMAND} -E echo "    for file in files:" >> ${PROJECT_BINARY_DIR}/chm/doxygen_manual_examples_chm.py
     COMMAND ${CMAKE_COMMAND} -E echo "        if file.endswith('.html') or file.endswith('.png') or file.endswith('.css') or file.endswith('.gif'):" >> ${PROJECT_BINARY_DIR}/chm/doxygen_manual_examples_chm.py
     COMMAND ${CMAKE_COMMAND} -E echo "            print(os.path.join(root, file))" >> ${PROJECT_BINARY_DIR}/chm/doxygen_manual_examples_chm.py
-    COMMAND ${CMAKE_COMMAND} -E chdir  ${PROJECT_BINARY_DIR}/chm ${PYTHON_EXECUTABLE} ${PROJECT_BINARY_DIR}/chm/doxygen_manual_examples_chm.py >> ${PROJECT_BINARY_DIR}/chm/doxygen_manual.hhp
+    COMMAND ${CMAKE_COMMAND} -E chdir  ${PROJECT_BINARY_DIR}/chm ${Python3_EXECUTABLE} ${PROJECT_BINARY_DIR}/chm/doxygen_manual_examples_chm.py >> ${PROJECT_BINARY_DIR}/chm/doxygen_manual.hhp
     COMMAND ${CMAKE_COMMAND} -E chdir ${PROJECT_BINARY_DIR}/chm "${HTML_HELP_COMPILER}" doxygen_manual.hhp || echo > nul
     COMMAND ${CMAKE_COMMAND} -E rename ${PROJECT_BINARY_DIR}/chm/index.chm ${PROJECT_BINARY_DIR}/chm/doxygen_manual.chm
         DEPENDS ${PROJECT_BINARY_DIR}/doc/language.doc ${PROJECT_BINARY_DIR}/doc/config.doc
diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
index 194b427..248b807 100644
--- a/examples/CMakeLists.txt
+++ b/examples/CMakeLists.txt
@@ -54,7 +54,7 @@ foreach (f_inp  ${BASIC_EXAMPLES})
         COMMAND ${CMAKE_COMMAND} -E make_directory ${PROJECT_BINARY_DIR}/html/examples/${f}
         COMMAND ${CMAKE_COMMAND} -E make_directory ${PROJECT_BINARY_DIR}/latex/examples/${f}
 	COMMAND ${EXECUTABLE_OUTPUT_PATH}/doxygen ${f}.cfg
-        COMMAND ${PYTHON_EXECUTABLE}  ${TOP}/examples/strip_example.py  < ${PROJECT_BINARY_DIR}/latex/examples/${f}/latex/refman.tex > ${PROJECT_BINARY_DIR}/latex/examples/${f}/latex/refman_doc.tex
+        COMMAND ${Python3_EXECUTABLE}  ${TOP}/examples/strip_example.py  < ${PROJECT_BINARY_DIR}/latex/examples/${f}/latex/refman.tex > ${PROJECT_BINARY_DIR}/latex/examples/${f}/latex/refman_doc.tex
 	DEPENDS doxygen ${f}.${f_ext} ${f}.cfg ${TOP}/examples/strip_example.py
 	OUTPUT ${PROJECT_BINARY_DIR}/html/examples/${f}/html/index.html ${PROJECT_BINARY_DIR}/latex/examples/${f}/latex/refman_doc.tex
     )
@@ -73,7 +73,7 @@ if (DOT)
         COMMAND ${CMAKE_COMMAND} -E make_directory ${PROJECT_BINARY_DIR}/html/examples/diagrams
         COMMAND ${CMAKE_COMMAND} -E make_directory ${PROJECT_BINARY_DIR}/latex/examples/diagrams
 	COMMAND ${EXECUTABLE_OUTPUT_PATH}/doxygen diagrams.cfg
-        COMMAND ${PYTHON_EXECUTABLE}  ${TOP}/examples/strip_example.py  < ${PROJECT_BINARY_DIR}/latex/examples/diagrams/latex/refman.tex > ${PROJECT_BINARY_DIR}/latex/examples/diagrams/latex/refman_doc.tex
+        COMMAND ${Python3_EXECUTABLE}  ${TOP}/examples/strip_example.py  < ${PROJECT_BINARY_DIR}/html/examples/diagrams/latex/refman.tex > ${PROJECT_BINARY_DIR}/html/examples/diagrams/latex/refman_doc.tex
 	DEPENDS doxygen diagrams_a.h diagrams_b.h diagrams_c.h diagrams_d.h diagrams_e.h diagrams.cfg ${TOP}/examples/strip_example.py
 	OUTPUT ${PROJECT_BINARY_DIR}/html/examples/diagrams/html/index.html ${PROJECT_BINARY_DIR}/latex/examples/diagrams/latex/refman_doc.tex
   )
diff --git a/libmscgen/CMakeLists.txt b/libmscgen/CMakeLists.txt
index 34cf4d8..f015afc 100644
--- a/libmscgen/CMakeLists.txt
+++ b/libmscgen/CMakeLists.txt
@@ -7,7 +7,7 @@ include_directories(
 set(LEX_FILES mscgen_lexer) 
 foreach(lex_file ${LEX_FILES})
     add_custom_command(
-        COMMAND ${PYTHON_EXECUTABLE} ${PROJECT_SOURCE_DIR}/src/scan_states.py ${PROJECT_SOURCE_DIR}/libmscgen/${lex_file}.l > ${GENERATED_SRC}/${lex_file}.l.h
+        COMMAND ${Python3_EXECUTABLE} ${PROJECT_SOURCE_DIR}/src/scan_states.py ${PROJECT_SOURCE_DIR}/libmscgen/${lex_file}.l > ${GENERATED_SRC}/${lex_file}.l.h
         DEPENDS ${PROJECT_SOURCE_DIR}/src/scan_states.py ${PROJECT_SOURCE_DIR}/libmscgen/${lex_file}.l
         OUTPUT  ${GENERATED_SRC}/${lex_file}.l.h
     )
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 0e0c5f7..c1d3ca5 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -40,7 +40,7 @@ set_source_files_properties(${GENERATED_SRC}/settings.h PROPERTIES GENERATED 1)
 
 # configvalues.h
 add_custom_command(
-    COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_LIST_DIR}/configgen.py -maph ${CMAKE_CURRENT_LIST_DIR}/config.xml > ${GENERATED_SRC}/configvalues.h
+    COMMAND ${Python3_EXECUTABLE} ${CMAKE_CURRENT_LIST_DIR}/configgen.py -maph ${CMAKE_CURRENT_LIST_DIR}/config.xml > ${GENERATED_SRC}/configvalues.h
     DEPENDS ${CMAKE_CURRENT_LIST_DIR}/config.xml ${CMAKE_CURRENT_LIST_DIR}/configgen.py
     OUTPUT ${GENERATED_SRC}/configvalues.h
 )
@@ -52,7 +52,7 @@ add_custom_target(
 
 # configvalues.cpp
 add_custom_command(
-    COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_LIST_DIR}/configgen.py -maps ${CMAKE_CURRENT_LIST_DIR}/config.xml > ${GENERATED_SRC}/configvalues.cpp
+    COMMAND ${Python3_EXECUTABLE} ${CMAKE_CURRENT_LIST_DIR}/configgen.py -maps ${CMAKE_CURRENT_LIST_DIR}/config.xml > ${GENERATED_SRC}/configvalues.cpp
     DEPENDS ${CMAKE_CURRENT_LIST_DIR}/config.xml ${CMAKE_CURRENT_LIST_DIR}/configgen.py
     OUTPUT ${GENERATED_SRC}/configvalues.cpp
 )
@@ -60,7 +60,7 @@ set_source_files_properties(${GENERATED_SRC}/configvalues.cpp PROPERTIES GENERAT
 
 # configoptions.cpp
 add_custom_command(
-    COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_LIST_DIR}/configgen.py -cpp ${CMAKE_CURRENT_LIST_DIR}/config.xml > ${GENERATED_SRC}/configoptions.cpp
+    COMMAND ${Python3_EXECUTABLE} ${CMAKE_CURRENT_LIST_DIR}/configgen.py -cpp ${CMAKE_CURRENT_LIST_DIR}/config.xml > ${GENERATED_SRC}/configoptions.cpp
     DEPENDS ${CMAKE_CURRENT_LIST_DIR}/config.xml ${CMAKE_CURRENT_LIST_DIR}/configgen.py
     OUTPUT ${GENERATED_SRC}/configoptions.cpp
 )
@@ -95,7 +95,7 @@ endif()
 # resources.cpp
 add_custom_command(
     COMMENT  "Generating ${GENERATED_SRC}/resources.cpp"
-    COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_LIST_DIR}/res2cc_cmd.py ${PROJECT_SOURCE_DIR}/templates ${GENERATED_SRC}/resources.cpp
+    COMMAND ${Python3_EXECUTABLE} ${CMAKE_CURRENT_LIST_DIR}/res2cc_cmd.py ${PROJECT_SOURCE_DIR}/templates ${GENERATED_SRC}/resources.cpp
     DEPENDS ${RESOURCES} ${CMAKE_CURRENT_LIST_DIR}/res2cc_cmd.py
     OUTPUT ${GENERATED_SRC}/resources.cpp
 )
@@ -126,7 +126,7 @@ foreach(lex_file ${LEX_FILES})
     set(LEX_FILES_H ${LEX_FILES_H} " " ${GENERATED_SRC}/${lex_file}.l.h CACHE INTERNAL "Stores generated files")
     set(LEX_FILES_CPP ${LEX_FILES_CPP} " " ${GENERATED_SRC}/${lex_file}.cpp CACHE INTERNAL "Stores generated files")
     add_custom_command(
-        COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_LIST_DIR}/scan_states.py ${CMAKE_CURRENT_LIST_DIR}/${lex_file}.l > ${GENERATED_SRC}/${lex_file}.l.h
+        COMMAND ${Python3_EXECUTABLE} ${CMAKE_CURRENT_LIST_DIR}/scan_states.py ${CMAKE_CURRENT_LIST_DIR}/${lex_file}.l > ${GENERATED_SRC}/${lex_file}.l.h
         DEPENDS ${CMAKE_CURRENT_LIST_DIR}/scan_states.py ${CMAKE_CURRENT_LIST_DIR}/${lex_file}.l
         OUTPUT  ${GENERATED_SRC}/${lex_file}.l.h
     )
diff --git a/testing/CMakeLists.txt b/testing/CMakeLists.txt
index fd6912e..0af1865 100644
--- a/testing/CMakeLists.txt
+++ b/testing/CMakeLists.txt
@@ -1,7 +1,7 @@
 # run all tests sequentially (keep for backward compatibility)
 add_custom_target(tests
 	COMMENT "Running doxygen tests..."
-	COMMAND ${PYTHON_EXECUTABLE} ${PROJECT_SOURCE_DIR}/testing/runtests.py --doxygen ${PROJECT_BINARY_DIR}/bin/doxygen --inputdir ${PROJECT_SOURCE_DIR}/testing --outputdir ${PROJECT_BINARY_DIR}/testing
+	COMMAND ${Python3_EXECUTABLE} ${PROJECT_SOURCE_DIR}/testing/runtests.py --doxygen ${PROJECT_BINARY_DIR}/bin/doxygen --inputdir ${PROJECT_SOURCE_DIR}/testing --outputdir ${PROJECT_BINARY_DIR}/testing
 	DEPENDS doxygen
 )
 
@@ -19,6 +19,6 @@ foreach(TEST_FILE ${TEST_FILES})
 	string(REGEX REPLACE "^.*/([0-9][0-9][0-9]*).*$" "\\1" TEST_ID "${TEST_FILE}")
 	# add a test target for each test
 	add_test(NAME ${TEST_NAME}
-		 COMMAND ${PYTHON_EXECUTABLE} ${PROJECT_SOURCE_DIR}/testing/runtests.py --id ${TEST_ID} --doxygen $<TARGET_FILE:doxygen> --inputdir ${PROJECT_SOURCE_DIR}/testing --outputdir ${PROJECT_BINARY_DIR}/testing
+		 COMMAND ${Python3_EXECUTABLE} ${PROJECT_SOURCE_DIR}/testing/runtests.py --id ${TEST_ID} --doxygen $<TARGET_FILE:doxygen> --inputdir ${PROJECT_SOURCE_DIR}/testing --outputdir ${PROJECT_BINARY_DIR}/testing
 	)
 endforeach()