https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100340
--- Comment #22 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Iain D Sandoe <ia...@gcc.gnu.org>: https://gcc.gnu.org/g:743b8dd6fd757e997eb060d70fd4ae8e04fb56cd commit r12-2968-g743b8dd6fd757e997eb060d70fd4ae8e04fb56cd 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.
