re PR c/9928 (ICE on duplicate enum declaration)

	PR c/9928
	* c-decl.c (duplicate_decls): Discard the initializer of the new decl
	only if it is a VAR_DECL.

From-SVN: r64235

gcc/ChangeLog

 2003-03-12  Eric Botcazou  <ebotcazou@libertysurf.fr>
 
+	PR c/9928
+	* c-decl.c (duplicate_decls): Discard the initializer of the new decl
+	only if it is a VAR_DECL.
+
+2003-03-12  Eric Botcazou  <ebotcazou@libertysurf.fr>
+
 	PR optimization/9888
 	* config/i386/i386.md (jcc_1): Fix range.
 	(jcc_2): Likewise.

gcc/c-decl.c

@@ -1146,7 +1146,8 @@ duplicate_decls (newdecl, olddecl, different_binding_level)
 	 to variables that were declared between olddecl and newdecl. This
 	 will make the initializer invalid for olddecl in case it gets
 	 assigned to olddecl below.  */
-      DECL_INITIAL (newdecl) = 0;
+      if (TREE_CODE (newdecl) == VAR_DECL)
+	DECL_INITIAL (newdecl) = 0;
     }
   /* TLS cannot follow non-TLS declaration.  */
   else if (TREE_CODE (olddecl) == VAR_DECL && TREE_CODE (newdecl) == VAR_DECL

gcc/testsuite/ChangeLog

 2003-03-12  Eric Botcazou  <ebotcazou@libertysurf.fr>
 
+	* gcc.dg/decl-3.c: New test.
+
+2003-03-12  Eric Botcazou  <ebotcazou@libertysurf.fr>
+
 	* gcc.dg/i386-loop-2.c: New test.
 
 2003-03-11  Mark Mitchell  <mark@codesourcery.com>

gcc/testsuite/gcc.dg/decl-3.c

+/* PR c/9928 */
+/* { dg-do compile } */
+
+enum { CODES }; /* { dg-error "previous declaration" } */
+enum { CODES }; /* { dg-error "conflicting types" } */