re PR fortran/15510 (Should not warn about unused variables from used modules)

PR fortran/15510
* trans-deecl.c (generate_local_decl): Do not issue warning for
unused variables if they're use associated.

Co-Authored-By: Andrew Vaught <andyv@firstinter.net>

From-SVN: r83113

gcc/fortran/ChangeLog

-2004-06-05  Tobias Schlueter  <tobias.schlueter@physik.uni-muenchen.de>
+2004-06-14  Tobias Schlueter  <tobias.schlueter@physik.uni-muenchen.de>
+
+	PR fortran/15510
+	* trans-deecl.c (generate_local_decl): Do not issue warning for
+	unused variables if they're use associated.
+
+2004-06-14  Tobias Schlueter  <tobias.schlueter@physik.uni-muenchen.de>
         Andrew Vaught <andyv@firstinter.net>
 
 	PR fortran/14928

gcc/fortran/trans-decl.c

@@ -1921,9 +1921,10 @@ generate_local_decl (gfc_symbol * sym)
             warning ("unused parameter `%s'", sym->name);
         }
       /* warn for unused variables, but not if they're inside a common
-	 block.  */
-      else if (warn_unused_variable && !sym->attr.in_common)
-	warning ("unused variable `%s'", sym->name);
+	 block or are use_associated.  */
+      else if (warn_unused_variable
+	       && !(sym->attr.in_common || sym->attr.use_assoc))
+	warning ("unused variable `%s'", sym->name); 
     }
 }