configure.ac: Check for .gnu_attribute on MIPS.

	* configure.ac: Check for .gnu_attribute on MIPS.
	* configure, config.in: Regenerate.
	* config/mips/mips.c (mips_file_start): If supported, output
	attribute for floating-point ABI.

From-SVN: r126157

1 files changed, 37 insertions, 0 deletions

diff --git a/gcc/configure b/gcc/configure
index a5f9fe3..68f8ed6 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -15833,6 +15833,43 @@ cat >>confdefs.h <<\_ACEOF
 _ACEOF
 
 fi
+
+    echo "$as_me:$LINENO: checking assembler for .gnu_attribute support" >&5
+echo $ECHO_N "checking assembler for .gnu_attribute support... $ECHO_C" >&6
+if test "${gcc_cv_as_mips_gnu_attribute+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  gcc_cv_as_mips_gnu_attribute=no
+    if test $in_tree_gas = yes; then
+    if test $gcc_cv_gas_vers -ge `expr \( \( 2 \* 1000 \) + 18 \) \* 1000 + 0`
+  then gcc_cv_as_mips_gnu_attribute=yes
+fi
+  elif test x$gcc_cv_as != x; then
+    echo '.gnu_attribute 4,1' > conftest.s
+    if { ac_try='$gcc_cv_as  -o conftest.o conftest.s >&5'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }
+    then
+	gcc_cv_as_mips_gnu_attribute=yes
+    else
+      echo "configure: failed program was" >&5
+      cat conftest.s >&5
+    fi
+    rm -f conftest.o conftest.s
+  fi
+fi
+echo "$as_me:$LINENO: result: $gcc_cv_as_mips_gnu_attribute" >&5
+echo "${ECHO_T}$gcc_cv_as_mips_gnu_attribute" >&6
+if test $gcc_cv_as_mips_gnu_attribute = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_AS_GNU_ATTRIBUTE 1
+_ACEOF
+
+fi
     ;;
 esac