re PR c++/60353 (Firefox build failure #3 caused by r208157)

	PR c++/60353
	PR c++/55877
	* decl2.c (tentative_decl_linkage): Don't mess with functions that
	are not yet defined.

From-SVN: r208200

gcc/cp/ChangeLog

+2014-02-27  Jason Merrill  <jason@redhat.com>
+
+	PR c++/60353
+	PR c++/55877
+	* decl2.c (tentative_decl_linkage): Don't mess with functions that
+	are not yet defined.
+
 2014-02-26  Jason Merrill  <jason@redhat.com>
 
 	PR c++/60347

gcc/cp/decl2.c

@@ -2564,7 +2564,8 @@ tentative_decl_linkage (tree decl)
        be handled.  */;
   else if (vague_linkage_p (decl))
     {
-      if (TREE_CODE (decl) == FUNCTION_DECL)
+      if (TREE_CODE (decl) == FUNCTION_DECL
+	  && decl_defined_p (decl))
 	{
 	  DECL_EXTERNAL (decl) = 1;
 	  DECL_NOT_REALLY_EXTERN (decl) = 1;
@@ -2586,11 +2587,8 @@ tentative_decl_linkage (tree decl)
 	      DECL_INTERFACE_KNOWN (decl) = 1;
 	    }
 	}
-      else
-	{
-	  gcc_assert (TREE_CODE (decl) == VAR_DECL);
-	  maybe_commonize_var (decl);
-	}
+      else if (TREE_CODE (decl) == VAR_DECL)
+	maybe_commonize_var (decl);
     }
 }
 

gcc/testsuite/g++.dg/other/anon6.C

+// PR c++/60353
+
+struct A {
+  A(int);
+};
+typedef struct {
+  A format;
+} B;