diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 442e6c044619..fd4e902b50da 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2005-03-15  Janis Johnson  <janis187@us.ibm.com>
+	    Dorit Naishlos  <dorit@il.ibm.com>
+
+	* lib/target-supports.exp (check_vmx_hw_available): Use -maltivec for
+	darwin.
+
 2005-03-15  Dorit Naishlos  <dorit@il.ibm.com>
 
 	* gcc.dg/vect/vect-54.c: Now vectorizable on targets that don't support
diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
index 6328eb535f0f..2acef12aeeac 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -371,8 +371,16 @@ proc check_vmx_hw_available { } {
 	puts $f "  return 0; }"
 	close $f
 
+	# Most targets don't require special flags for this test case, but
+	# Darwin does.
+	if [istarget *-*-darwin*] {
+	  set opts "additional_flags=-maltivec"
+	} else {
+	  set opts ""
+	}
+
 	verbose "check_vmx_hw_available  compiling testfile $src" 2
-	set lines [${tool}_target_compile $src $exe executable ""]
+	set lines [${tool}_target_compile $src $exe executable "$opts"]
 	file delete $src
 
 	if [string match "" $lines] then {