https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64813
--- Comment #18 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- > May I ask you for testing on a darwin machine? I have bootstrapped revision r220534 with the patch. AFAICT the patch fixes the failures reported in this PR (tested with make -k check RUNTESTFLAGS="conformance.exp=2.cc --target_board=unix'{-m32,-m64}'" and make -k check RUNTESTFLAGS="conformance.exp=4.cc --target_board=unix'{-m32,-m64}'"). However I see the following regression (for both -m32 and -m64) FAIL: 22_locale/conversions/string/2.cc execution test The error is Assertion failed: (werr == woutput), function test01, file /opt/gcc/work/libstdc++-v3/testsuite/22_locale/conversions/string/2.cc, line 49. Abort Full regtesting scheduled later today.