PR c++/79519 - ICE with deleted template friend.

	* decl.c (grokdeclarator): Complain about misplaced function
	definition using =, as well.

From-SVN: r246291

gcc/cp/ChangeLog

 2017-03-20  Jason Merrill  <jason@redhat.com>
 
+	PR c++/79519 - ICE with deleted template friend.
+	* decl.c (grokdeclarator): Complain about misplaced function
+	definition using =, as well.
+
 	PR c++/79640 - infinite recursion with generic lambda.
 	* pt.c (tsubst_copy) [VAR_DECL]: Register the dummy instantiation
 	before substituting its initializer.

gcc/cp/decl.c

@@ -11365,9 +11365,9 @@ grokdeclarator (const cp_declarator *declarator,
       else if (TREE_CODE (type) == FUNCTION_TYPE)
 	{
 	  if (current_class_type
-	      && (!friendp || funcdef_flag))
+	      && (!friendp || funcdef_flag || initialized))
 	    {
-	      error (funcdef_flag
+	      error (funcdef_flag || initialized
 		     ? G_("cannot define member function %<%T::%s%> "
 			  "within %<%T%>")
 		     : G_("cannot declare member function %<%T::%s%> "

gcc/testsuite/g++.dg/cpp0x/deleted13.C

+// PR c++/79519
+// { dg-do compile { target c++11 } }
+
+struct A
+{
+  template<typename> void foo();
+};
+
+struct B
+{
+  template<typename> friend void A::foo() = delete; // { dg-error "" }
+};