config.gcc (*-*-openbsd4.[3-9]|*-*-openbsd[5-9]*): Set default_use_cxa_atexit to yes.

	* config.gcc (*-*-openbsd4.[3-9]|*-*-openbsd[5-9]*): Set
	default_use_cxa_atexit to yes.

From-SVN: r192039

gcc/ChangeLog

+2012-09-03  Mark Kettenis  <kettenis@openbsd.org>
+
+	* config.gcc (*-*-openbsd4.[3-9]|*-*-openbsd[5-9]*): Set
+	default_use_cxa_atexit to yes.
+		
 2012-10-03  Jakub Jelinek  <jakub@redhat.com>
 
 	PR rtl-optimization/54792

gcc/config.gcc

@@ -709,6 +709,11 @@ case ${target} in
     *-*-openbsd2.*|*-*-openbsd3.[012])
       tm_defines="${tm_defines} HAS_LIBC_R=1" ;;
   esac
+  case ${target} in
+    *-*-openbsd4.[3-9]|*-*-openbsd[5-9]*)
+      default_use_cxa_atexit=yes
+      ;;
+  esac
   ;;
 *-*-rtems*)
   case ${enable_threads} in