configure.ac (powerpc-*-darwin*): Require assembler to support .machine directive.

2004-10-18  Kelley Cook  <kcook@gcc.gnu.org>

	* configure.ac (powerpc-*-darwin*): Require assembler to support
	.machine directive.
	* configure: Regenerate.

From-SVN: r89264

gcc/ChangeLog

+2004-10-18  Kelley Cook  <kcook@gcc.gnu.org>
+
+	* configure.ac (powerpc-*-darwin*): Require assembler to support
+	.machine directive.
+	* configure: Regenerate.
+
 2004-10-18  Kazu Hirata  <kazu@cs.umass.edu>
 
 	* reload1.c (ior_hard_reg_set): Remove.

gcc/configure

@@ -14369,9 +14369,40 @@ fi
     case $target in
       *-*-aix*) conftest_s='	.csect .text[PR]
 	mfcr 3,128';;
-      *-*-darwin*) conftest_s='	.text
+      *-*-darwin*)
+       echo "$as_me:$LINENO: checking assembler for .machine directive support" >&5
+echo $ECHO_N "checking assembler for .machine directive support... $ECHO_C" >&6
+if test "${gcc_cv_as_machine_directive+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  gcc_cv_as_machine_directive=no
+  if test x$gcc_cv_as != x; then
+    echo '	.machine ppc7400' > 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 $ac_status); }; }
+    then
+	gcc_cv_as_machine_directive=yes
+    else
+      echo "configure: failed program was" >&5
+      cat conftest.s >&5
+    fi
+    rm -f conftest.o conftest.s
+  fi
+fi
+echo "$as_me:$LINENO: result: $gcc_cv_as_machine_directive" >&5
+echo "${ECHO_T}$gcc_cv_as_machine_directive" >&6
+
+       if test x$gcc_cv_as_machine_directive != xyes; then
+         echo "*** This target requires an assembler supporting \".machine\"" >&2
+         exit 1
+       fi
+       conftest_s='	.text
 	mfcr r3,128';;
-      *)       conftest_s='	.machine power4
+      *) conftest_s='	.machine power4
 	.text
 	mfcr 3,128';;
     esac

gcc/configure.ac

@@ -2695,9 +2695,17 @@ foo:	nop
     case $target in
       *-*-aix*) conftest_s='	.csect .text[[PR]]
 	mfcr 3,128';;
-      *-*-darwin*) conftest_s='	.text
+      *-*-darwin*)
+       gcc_GAS_CHECK_FEATURE([.machine directive support],
+         gcc_cv_as_machine_directive,,,
+         [	.machine ppc7400])
+       if test x$gcc_cv_as_machine_directive != xyes; then
+         echo "*** This target requires an assembler supporting \".machine\"" >&2
+         exit 1
+       fi
+       conftest_s='	.text
 	mfcr r3,128';;
-      *)       conftest_s='	.machine power4
+      *) conftest_s='	.machine power4
 	.text
 	mfcr 3,128';;
     esac