[gcc r16-7413] build: Use GNU as options on most x86/SPARC systems [PR123841, PR123926]

[Rainer Orth]

https://gcc.gnu.org/g:8564ce94d6a853377c41bdd6b5d86541f0e65844

commit r16-7413-g8564ce94d6a853377c41bdd6b5d86541f0e65844
Author: Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
Date:   Mon Feb 9 16:07:08 2026 +0100

    build: Use GNU as options on most x86/SPARC systems [PR123841,PR123926]
    
    The GNU as --32 and --64 options are now applied to all x86 and SPARC
    systems other than Darwin and Solaris with the native assembler.
    
    Tested on {i386,amd64}-pc-solaris2.11, sparc{,v9}-sun-solaris2.11,
    {x86_64,i686}-pc-linux-gnu, amd64-pc-freebsd15.0, and
    sparc64-unknown-linux-gnu.
    
    2026-01-28  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
    
            gcc:
            PR other/123841
            PR target/123926
            * acinclude.m4 (gcc_GAS_FLAGS): Handle non-Darwin/Solaris as cases
            alike on x86 and SPARC.
            * configure: Regenerate.

Diff:
---
 gcc/acinclude.m4 | 10 +++++-----
 gcc/configure    |  6 +++---
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/gcc/acinclude.m4 b/gcc/acinclude.m4
index ea735457d730..0b840c586a34 100644
--- a/gcc/acinclude.m4
+++ b/gcc/acinclude.m4
@@ -493,7 +493,7 @@ AC_DEFUN([gcc_GAS_FLAGS],
     esac
     ;;
   *-*-solaris2*:no)
-    dnl Override the default, which may be incompatible.
+    dnl Solaris with the native assembler uses -m32/-m64 consistently.
     case "$target" in
       i?86-*-* | sparc-*-*)
 	gcc_cv_as_flags=-m32
@@ -505,16 +505,16 @@ AC_DEFUN([gcc_GAS_FLAGS],
     as_32_opt=-m32
     as_64_opt=-m64
     ;;
-  i?86-*-*:* | x86_64-*-*:* )
-    dnl Override the default, which may be incompatible.
+  i?86-*-*:* | x86_64-*-*:* | sparc*-*-*:*)
+    dnl Otherwise x86 and SPARC use GNU assembler options --32/--64/--x32.
     case "$target" in
-      i?86-*-*)
+      i?86-*-* | sparc-*-*)
 	gcc_cv_as_flags=--32
 	;;
       x86_64-*-linux-gnux32*)
 	gcc_cv_as_flags=--x32
 	;;
-      x86_64-*-linux*)
+      x86_64-*-* | sparcv9-*-* | sparc64-*-*)
 	gcc_cv_as_flags=--64
 	;;
     esac
diff --git a/gcc/configure b/gcc/configure
index fc3de9419d6f..bad73081a9b8 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -26188,15 +26188,15 @@ else
     as_32_opt=-m32
     as_64_opt=-m64
     ;;
-  i?86-*-*:* | x86_64-*-*:* )
+  i?86-*-*:* | x86_64-*-*:* | sparc*-*-*:*)
         case "$target" in
-      i?86-*-*)
+      i?86-*-* | sparc-*-*)
 	gcc_cv_as_flags=--32
 	;;
       x86_64-*-linux-gnux32*)
 	gcc_cv_as_flags=--x32
 	;;
-      x86_64-*-linux*)
+      x86_64-*-* | sparcv9-*-* | sparc64-*-*)
 	gcc_cv_as_flags=--64
 	;;
     esac