https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100340
--- Comment #28 from Eric Gallager <egallager at gcc dot gnu.org> --- (In reply to CVS Commits from comment #27) > The releases/gcc-11 branch has been updated by Iain D Sandoe > <ia...@gcc.gnu.org>: > > https://gcc.gnu.org/g:8b333df9484c1697f3a80530a47aa90b1859e970 > > commit r11-9147-g8b333df9484c1697f3a80530a47aa90b1859e970 > Author: Iain Sandoe <i...@sandoe.co.uk> > Date: Sat Jul 31 16:29:03 2021 +0100 > > Darwin, X86, config: Adjust 'as' command lines [PR100340]. > > Versions of the assembler using clang from XCode 12.5/12.5.1 > have a bug which produces different code layout between debug and > non-debug input, leading to a compare fail for default configure > parameters. > > This is a workaround fix to disable the optimisation that is > responsible for the bug. > > Signed-off-by: Iain Sandoe <i...@sandoe.co.uk> > > PR target/100340 - Bootstrap fails with Clang 12.0.5 (XCode 12.5) > > PR target/100340 > > gcc/ChangeLog: > > * config.in: Regenerate. > * config/i386/darwin.h (EXTRA_ASM_OPTS): New > (ASM_SPEC): Pass options to disable branch shortening where > needed. > * configure: Regenerate. > * configure.ac: Detect versions of 'as' that support the > optimisation which has the bug. > > (cherry picked from commit 743b8dd6fd757e997eb060d70fd4ae8e04fb56cd) Did this fix it? (asking due to downstream issue https://trac.macports.org/ticket/63312 in MacPorts, btw)
