FIxed an IMA bug showed up in parse and gzip.

OKed by Richard Henderson.

From-SVN: r88312

gcc/ChangeLog

+2004-09-29  Fariborz Jahanian <fjahanian@apple.com>
+
+	* c-decl.c (merge_decls): Use comptype when comparing
+	types to decide on DECL_SIZE save of olddecl.
+
 2004-09-29  Daniel Berlin  <dberlin@dberlin.org>
 
 	* tree.h (INDIRECT_REF_P): New macro.

gcc/c-decl.c

@@ -1549,7 +1549,7 @@ merge_decls (tree newdecl, tree olddecl, tree newtype, tree oldtype)
     = composite_type (newtype, oldtype);
 
   /* Lay the type out, unless already done.  */
-  if (oldtype != TREE_TYPE (newdecl))
+  if (!comptypes (oldtype, TREE_TYPE (newdecl)))
     {
       if (TREE_TYPE (newdecl) != error_mark_node)
 	layout_type (TREE_TYPE (newdecl));