https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102675
--- Comment #2 from Gerald Pfeifer <gerald at pfeifer dot com> --- (In reply to H.J. Lu from comment #1) > That file is FreeBSD specific. Can you use a local patch to force > /usr/include/md5.h, like > > #include_next <md5.h> I tried replacing #include <md5.h> by #include_next <md5.h>; that did not lead to any change. Using #include "/usr/include/md5.h" restored bootstrap. This confirms my hypothesis that it's GCC's md5.h being picked up that is the issue for this regression.