https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68176
--- Comment #5 from Nix <nix at esperi dot org.uk> --- I didn't think of that (I try to forget that fixincludes exists because it gives me nightmares). But much though I hate fixincludes, this sort of fix (to headers for an obsolete program which will by definition never be fixed) is more or less exactly what it was designed for, and seems a perfect fit for this case. The question is whether further adjustments are needed to compensate for the removal of <bits/predefs.h>... I'll do some experimentation.