https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94843
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|c++ |pch
Keywords| |diagnostic
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
The constraints for the use of PCH are quite strict and a second include
of the same PCH is definitely not supported.
The failure mode isn't very helpful though.
