acinclude.m4 (gcc_GAS_FLAGS): Add more gcc_cv_as_flags overrides.

gcc/
	* acinclude.m4 (gcc_GAS_FLAGS): Add more gcc_cv_as_flags
	overrides.

From-SVN: r203410

gcc/ChangeLog

+2013-10-11  Thomas Schwinge  <thomas@codesourcery.com>
+
+	* acinclude.m4 (gcc_GAS_FLAGS): Add more gcc_cv_as_flags
+	overrides.
+	* configure: Regenerate.
+
 2013-10-11  Jakub Jelinek  <jakub@redhat.com>
 
 	* tree-pretty-print.c (dump_omp_clause): Handle OMP_CLAUSE__LOOPTEMP_

gcc/acinclude.m4

@@ -444,8 +444,16 @@ AC_DEFUN([gcc_GAS_FLAGS],
 [AC_CACHE_CHECK([assembler flags], gcc_cv_as_flags,
 [ case "$target" in
   i[[34567]]86-*-linux*)
-    dnl Always pass --32 to ia32 Linux assembler.
-    gcc_cv_as_flags="--32"
+    dnl Override the default, which may be incompatible.
+    gcc_cv_as_flags=--32
+    ;;
+  x86_64-*-linux-gnux32)
+    dnl Override the default, which may be incompatible.
+    gcc_cv_as_flags=--x32
+    ;;
+  x86_64-*-linux*)
+    dnl Override the default, which may be incompatible.
+    gcc_cv_as_flags=--64
     ;;
   powerpc*-*-darwin*)
     dnl Always pass -arch ppc to assembler.

gcc/configure

@@ -21760,7 +21760,13 @@ if test "${gcc_cv_as_flags+set}" = set; then :
 else
    case "$target" in
   i[34567]86-*-linux*)
-        gcc_cv_as_flags="--32"
+        gcc_cv_as_flags=--32
+    ;;
+  x86_64-*-linux-gnux32)
+        gcc_cv_as_flags=--x32
+    ;;
+  x86_64-*-linux*)
+        gcc_cv_as_flags=--64
     ;;
   powerpc*-*-darwin*)
         gcc_cv_as_flags="-arch ppc"