https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93059
--- Comment #32 from fdlbxtqi <euloanty at live dot com> --- (In reply to Bernd Edlinger from comment #31) > Yes, you usually need to make a full bootstrap / make check twice > which the same svn revision one with and one without your patch. > You also should make sure that the test case actually is able to fail > before your patch. > You run "$(srcdir)/contrib/test_summary -t" each time and > compare the output. I am going to bootstrap a new GCC version on my friend's new machine installed with CentOS