https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116907
--- Comment #4 from Sam James <sjames at gcc dot gnu.org> --- Created attachment 59239 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=59239&action=edit option_types.ii.xz That does it, thanks! g++ -std=c++2a -O3 -flto -c option_types.ii --param ggc-min-expand=1 --param ggc-min-heapsize=1