https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89583
--- Comment #2 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- > Added: > trunk/gcc/testsuite/gnat.dg/socket2.adb This test fails on x86_64-apple-darwin18: raised GNAT.SOCKETS.SOCKET_ERROR : [22] Invalid argument FAIL: gnat.dg/socket2.adb execution test