re PR fortran/24005 (Ambiguous INTERFACE leads to seg fault)

PR fortran/24005
* interface.c (check_interface1): Fix NULL dereference.

From-SVN: r104544

gcc/fortran/ChangeLog

+2005-09-22  Steven G. Kargl  <kargls@comcast.net>
+
+	PR fortran/24005
+	* interface.c (check_interface1): Fix NULL dereference.
+
 2005-09-22  Erik Edelmann  <erik.edelmann@iki.fi>
 
 	PR fortran/23843

gcc/fortran/interface.c

@@ -926,8 +926,7 @@ check_interface1 (gfc_interface * p, gfc_interface * q,
 	if (p->sym == q->sym)
 	  continue;		/* Duplicates OK here */
 
-	if (strcmp (p->sym->name, q->sym->name) == 0
-	    && strcmp (p->sym->module, q->sym->module) == 0)
+	if (p->sym->name == q->sym->name && p->sym->module == q->sym->module)
 	  continue;
 
 	if (compare_interfaces (p->sym, q->sym, generic_flag))