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