commit b04447c2d8c7d4659350a808ade9b1345794e3fc
author Matt Johnston <matt@codeconstruct.com.au> Thu Sep 18 15:51:04 2025 +0800
committer Matt Johnston <matt@codeconstruct.com.au> Fri Sep 19 15:42:35 2025 +0800
tree 52d174d4673b2a456f9458cd4759c618afbb9b2d
parent c2438238b8ae477ce5119e4ebb6fa73af991751e

Specify customization with meson options

Meson options can now be used to pass custom parameters. The default
values are still used if unset for other build systems.

Previously -D arguments were not being used by Meson when determining
sizeof for libmctp-sizes.h, since arguments are ignored for compiler
flags.  Instead the options are now passed explicitly.

Change-Id: I04cfff40fab03b8ccbca33acdf2b5abb30723e5b
Signed-off-by: Matt Johnston <matt@codeconstruct.com.au>

meson.build

diff --git a/meson.build b/meson.build
index 7f55a2e..b8897a5 100644
--- a/meson.build
+++ b/meson.build
@@ -74,6 +74,20 @@
     libmctp_sources += ['log.c']
 endif
 
+option_args = [
+    '-DMCTP_MAX_MESSAGE_SIZE=@0@'.format(get_option('max_message_size')),
+    '-DMCTP_REASSEMBLY_CTXS=@0@'.format(get_option('reassembly_contexts')),
+    '-DMCTP_REQ_TAGS=@0@'.format(get_option('request_tags')),
+    '-DMCTP_DEFAULT_CLOCK_GETTIME=@0@'.format(
+        get_option('default_clock_gettime').to_int(),
+    ),
+    '-DMCTP_CONTROL_HANDLER=@0@'.format(get_option('control').to_int()),
+    '-DI2C_BTU=@0@'.format(get_option('i2c_mtu')),
+    '-DMCTP_I2C_NEIGH_COUNT=@0@'.format(get_option('i2c_neigh_count')),
+]
+
+add_project_arguments(option_args, language: 'c')
+
 feat_fileio = get_option('fileio').require(
     compiler.links(
         '''
@@ -173,11 +187,13 @@
 sizeof_mctp = compiler.sizeof(
     'struct mctp',
     include_directories: libmctp_include_dir,
+    args: option_args,
     prefix: '#include "core-internal.h"',
 )
 sizeof_binding_i2c = compiler.sizeof(
     'struct mctp_binding_i2c',
     include_directories: libmctp_include_dir,
+    args: option_args,
     prefix: '#include "i2c-internal.h"',
 )
 sizes_h = configure_file(