https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108313
--- Comment #1 from niXman <i.nixman at autistici dot org> --- file/line to the buggy line: https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=libcpp/system.h;h=e80cf029d88fcb74db5515b4b2915d72df0974dc;hb=refs/heads/master#l404