https://bugs.freedesktop.org/show_bug.cgi?id=71239
--- Comment #24 from Mike Lothian mike@fireburn.co.uk --- Created attachment 94159 --> https://bugs.freedesktop.org/attachment.cgi?id=94159&action=edit Patch for ignoring macros starting with __
The c file is generated by the src/glsl/glcpp/glcpp-parse.y file - this patch might make things easier for those building from scratch - you might need to make sure the c file is regenerated