https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79510
Martin Sebor <msebor at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED CC| |msebor at gcc dot gnu.org Resolution|--- |INVALID --- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> --- GCC doesn't define a __gcc__ macro. In C++ mode it defines __GNUC__ and __GNUG__: https://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html