https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71367
--- Comment #11 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Jonathan Wakely from comment #1) > We need this to fix some failing tests now, because glibc 2.29 changed T_FMT > for some locales, including en_HK which we use in: > > testsuite/22_locale/time_get/get_time/char/2.cc > testsuite/22_locale/time_get/get_time/wchar_t/2.cc Those tests PASS again now.