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549 B

New method to preprocess source files

Compiler object has a new preprocess() method. It is supported by all C/C++ compilers. It preprocess sources without compiling them.

The preprocessor will receive the same arguments (include directories, defines, etc) as with normal compilation. That includes for example args added with add_project_arguments(), or on the command line with -Dc_args=-DFOO.

cc = meson.get_compiler('c')
pp_files = cc.preprocess('foo.c', 'bar.c', output: '@PLAINNAME@')
exe = executable('app', pp_files)