https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118283
--- Comment #3 from Sam James <sjames at gcc dot gnu.org> --- (In reply to Brecht Sanders from comment #0) > - `bool` now seems to be defined in C. Several projects use bool as a > variable name or define it using typedef, both of which will result in > compile errors. Just be careful when fixing these if bool appears on an ABI boundary or is serialised etc, as _Bool isn't the same as int.