2007-11-26  Jakub Jelinek  <jakub@redhat.com>

	PR c++/34238
	* decl2.c (cp_write_global_declarations): Test
	!DECL_INITIALIZED_IN_CLASS_P instead of checking NULL
	DECL_INITIAL.

	* g++.dg/ext/visibility/anon9.C: New test.

--- gcc/cp/decl2.c.jj	2007-11-22 15:03:54.000000000 +0100
+++ gcc/cp/decl2.c	2007-11-26 21:04:38.000000000 +0100
@@ -3375,7 +3375,7 @@ cp_write_global_declarations (void)
 		 namespace { struct A { static const int i = 4; } };
 		 decl_needed_p won't reliably detect whether it was
 		 really needed.  */
-	      if (DECL_IN_AGGR_P (decl) && DECL_INITIAL (decl) == NULL_TREE)
+	      if (DECL_IN_AGGR_P (decl) && !DECL_INITIALIZED_IN_CLASS_P (decl))
 		error ("%Jstatic data member %qD used, but not defined",
 		       decl, decl);
 	      DECL_EXTERNAL (decl) = 0;
--- gcc/testsuite/g++.dg/ext/visibility/anon9.C.jj	2007-11-26 21:37:34.000000000 +0100
+++ gcc/testsuite/g++.dg/ext/visibility/anon9.C	2007-11-26 21:38:01.000000000 +0100
@@ -0,0 +1,11 @@
+// PR c++/34238
+// { dg-do compile }
+
+namespace
+{
+  template <typename T = int> struct A
+  {
+    static const bool a = true;
+  };
+}
+struct A<> a;