https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97989
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org --- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> --- The two options together make no sense. -g3 asks for all macros to be recorded in the debug info and thus they need to be emitted, -P asks not to do that. So, it is all about which of the two options takes precedence.