https://gcc.gnu.org/g:1a5fd574bdf25b93320bf039c73900e5597994f7
commit r16-7268-g1a5fd574bdf25b93320bf039c73900e5597994f7 Author: Rainer Orth <[email protected]> Date: Tue Feb 3 20:34:10 2026 +0100 build: Use separate options for Darwin as [PR123841] Since commit 5fc4e333b42d12aca71587f83f2d2c5be9633146 Author: Rainer Orth <[email protected]> Date: Tue Jan 27 19:15:36 2026 +0100 build: Unify 32 and 64-bit assembler handling gcc/acinclude.m4 uses gas-only flags --32/--64 on Darwin/x86 with the native assembler, which breaks many configure tests. This patch uses the Darwin as options instead, handling the PowerPC cases at the same time. Tested on x86_64-apple-darwin21.6.0 and 386-apple-darwin17.7.0. 2026-01-28 Rainer Orth <[email protected]> gcc: PR other/123841 * acinclude.m4 (gcc_GAS_FLAGS): Handle Darwin as cases separately. * configure: Regenerate. Diff: --- gcc/acinclude.m4 | 31 +++++++++++++++++++++++++++---- gcc/configure | 25 ++++++++++++++++++++++--- 2 files changed, 49 insertions(+), 7 deletions(-) diff --git a/gcc/acinclude.m4 b/gcc/acinclude.m4 index aef4ca46db88..89e00a16f1d2 100644 --- a/gcc/acinclude.m4 +++ b/gcc/acinclude.m4 @@ -465,6 +465,33 @@ dnl # AC_DEFUN([gcc_GAS_FLAGS], [AC_CACHE_CHECK([assembler flags], gcc_cv_as_flags, [ case "$target:$gas_flag" in + *-*-darwin*:*) + dnl Darwin with the native assembler uses -arch i386/x86_64/ppc/ppc64. + dnl + dnl Old cctools versions of the Darwin assembler identify as "GNU + dnl assembler version 1.38", but still accept the same options as later + dnl clang-based ones, so treat them all the same regardless. + case "$target" in + i?86-*-*) + gcc_cv_as_flags="-arch i386" + ;; + powerpc64*-*-*) + gcc_cv_as_flags="-arch ppc64" + ;; + powerpc*-*-*) + gcc_cv_as_flags="-arch ppc" + ;; + x86_64-*-*) + gcc_cv_as_flags="-arch x86_64" + ;; + esac + case "$target" in + i?86-*-* | x86_64-*-*) + as_32_opt="-arch i386" + as_64_opt="-arch x86_64" + ;; + esac + ;; *-*-solaris2*:no) dnl Override the default, which may be incompatible. case "$target" in @@ -494,10 +521,6 @@ AC_DEFUN([gcc_GAS_FLAGS], as_32_opt=--32 as_64_opt=--64 ;; - powerpc*-*-darwin*:*) - dnl Always pass -arch ppc to assembler. - gcc_cv_as_flags="-arch ppc" - ;; amdgcn*:*) dnl Currently, only the llvm-mc assembler is supported. dnl Add flags to ensure an amdgcn ELF file is written. diff --git a/gcc/configure b/gcc/configure index b708db893d88..e8b5c4a7118a 100755 --- a/gcc/configure +++ b/gcc/configure @@ -26146,6 +26146,28 @@ if ${gcc_cv_as_flags+:} false; then : $as_echo_n "(cached) " >&6 else case "$target:$gas_flag" in + *-*-darwin*:*) + case "$target" in + i?86-*-*) + gcc_cv_as_flags="-arch i386" + ;; + powerpc64*-*-*) + gcc_cv_as_flags="-arch ppc64" + ;; + powerpc*-*-*) + gcc_cv_as_flags="-arch ppc" + ;; + x86_64-*-*) + gcc_cv_as_flags="-arch x86_64" + ;; + esac + case "$target" in + i?86-*-* | x86_64-*-*) + as_32_opt="-arch i386" + as_64_opt="-arch x86_64" + ;; + esac + ;; *-*-solaris2*:no) case "$target" in i?86-*-* | sparc-*-*) @@ -26173,9 +26195,6 @@ else as_32_opt=--32 as_64_opt=--64 ;; - powerpc*-*-darwin*:*) - gcc_cv_as_flags="-arch ppc" - ;; amdgcn*:*) gcc_cv_as_flags="--filetype=obj -triple=amdgcn--amdhsa" ;;
