[Bug c++/97905] [11 Regression] ice in duplicate_decls, at cp/decl.c:2754

[nathan at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97905

--- Comment #5 from Nathan Sidwell <nathan at gcc dot gnu.org> ---
David, to build just cc1plus: 'make -C gcc cc1plus -j$how_many_cpus_available'

pass 'CXXFLAGS=$whatever' to override the default (usually -O2 -g)