re PR fortran/43899 (Wrong unused-variable warning with NAMELISTs)

2010-11-08  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/43899
	* trans-decl.c (generate_local_decl): Do not generate unused warning
	for variables in namelists.

From-SVN: r166461

gcc/fortran/ChangeLog

+2010-11-08  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
+
+	PR fortran/43899
+	* trans-decl.c (generate_local_decl): Do not generate unused warning
+	for variables in namelists.
+
 2010-11-08  Janus Weil  <janus@gcc.gnu.org>
 
 	PR fortran/46344

gcc/fortran/trans-decl.c

@@ -4017,9 +4017,10 @@ generate_local_decl (gfc_symbol * sym)
 	}
 
       /* Warn for unused variables, but not if they're inside a common
-	 block or are use-associated.  */
+	 block, a namelist, or are use-associated.  */
       else if (warn_unused_variable
-	       && !(sym->attr.in_common || sym->attr.use_assoc || sym->mark))
+	       && !(sym->attr.in_common || sym->attr.use_assoc || sym->mark
+		    || sym->attr.in_namelist))
 	gfc_warning ("Unused variable '%s' declared at %L", sym->name,
 		     &sym->declared_at);