Do not insert packing attributes unless #pragma pack(push,<n>) is active.

From-SVN: r22894

gcc/ChangeLog

+Wed Oct  7 14:40:43 1998  Nick Clifton  <nickc@cygnus.com>
+
+	* c-pragma.c (insert_pack_attributes): Do not insert
+	attributes unless #pragma pack(push,<n>) is in effect.
+
 Wed Oct  7 12:10:46 1998  Jim Wilson  <wilson@cygnus.com>
 
 	* expr.c (emit_group_store): Handle a PARALLEL destination.

gcc/c-pragma.c

@@ -146,7 +146,8 @@ insert_pack_attributes (node, attributes, prefix)
   tree a;
 
   /* If we are not packing, then there is nothing to do.  */
-  if (maximum_field_alignment == 0)
+  if (maximum_field_alignment == 0
+      || alignment_stack == NULL)
     return;
 
   /* We are only interested in fields.  */