https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111756
--- Comment #8 from Gaius Mulley <gaius at gcc dot gnu.org> --- Created attachment 56135 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=56135&action=edit Proposed fix for gcc-13 This is a patch for gcc-13 adding dependency checking within gcc/m2/Make-lang.in. This patch does not include the implementation of the -M options for gm2/cc1gm2 (unlike the gcc-14 version of the patch). Ironically the implementation of the -M options (within gm2/cc1gm2) were not necessary to fix this PR as m2/stage1/cc1gm2 is built by translating the m2 sources into c++.