commit 5dbbdeda316eaa8f2b2a43fc28762f7d7ecca22c
Author: Jason Merrill <jason@redhat.com>
Date:   Wed Apr 1 10:14:53 2015 -0400

    	PR c++/65646
    	* decl.c (grokvardecl): Don't call check_explicit_specialization
    	for non-template members of a class template.

diff --git a/gcc/cp/decl.c b/gcc/cp/decl.c
index f05aefa..31b8e0c 100644
--- a/gcc/cp/decl.c
+++ b/gcc/cp/decl.c
@@ -8210,7 +8210,9 @@ grokvardecl (tree type,
     DECL_INTERFACE_KNOWN (decl) = 1;
 
   // Handle explicit specializations and instantiations of variable templates.
-  if (orig_declarator)
+  if (orig_declarator
+      /* For GCC 5 fix 65646 this way.  */
+      && current_tmpl_spec_kind (template_count) != tsk_none)
     decl = check_explicit_specialization (orig_declarator, decl,
 					  template_count, 0);
 
diff --git a/gcc/testsuite/g++.dg/template/static36.C b/gcc/testsuite/g++.dg/template/static36.C
new file mode 100644
index 0000000..36c48b0
--- /dev/null
+++ b/gcc/testsuite/g++.dg/template/static36.C
@@ -0,0 +1,4 @@
+// PR c++/65646
+
+template <typename = int> class A {};
+template <> A<> &A<>::a;	// { dg-error "" }