https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100462
--- Comment #7 from Marco Trevisan <mail at 3v1n0 dot net> --- (In reply to Marco Trevisan from comment #6) > # Works > g++ -I _build main.c -o main -include string -include gjs_pch.h Ouch, I forgot to delete an include after pasting # Works g++ -I _build main.c -o main -include gjs_pch.h