* toplev.c (check_global_declarations): Do not warn about unused
static consts.
PR c/13029
* gcc.dg/unused-4.c: Update.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@73554
138bc75d-0d04-0410-961f-
82ee72b054a4
+2003-11-13 Mark Mitchell <mark@codesourcery.com>
+ Kean Johnston <jkj@sco.com>
+
+ PR c/13029
+ * toplev.c (check_global_declarations): Do not warn about unused
+ static consts.
+
2003-11-13 Pavel Pisa <pisa@cmp.felk.cvut.cz>
Kazu Hirata <kazu@cs.umass.edu>
+2003-11-13 Mark Mitchell <mark@codesourcery.com>
+ Kean Johnston <jkj@sco.com>
+
+ PR c/13029
+ * gcc.dg/unused-4.c: Update.
+
2003-11-13 Eric Botcazou <ebotcazou@libertysurf.fr>
* g++.dg/opt/const3.C: New test.
/* { dg-do compile } */
/* { dg-options "-Wunused -O3" } */
-static const int i = 0; /* { dg-warning "defined but not used" } */
+static const int i = 0;
static void f() { } /* { dg-warning "defined but not used" } */
static inline void g() { }
/* Warn about static fns or vars defined but not used. */
if (((warn_unused_function && TREE_CODE (decl) == FUNCTION_DECL)
- || (warn_unused_variable && TREE_CODE (decl) == VAR_DECL))
+ /* We don't warn about "static const" variables because the
+ "rcs_id" idiom uses that construction. */
+ || (warn_unused_variable
+ && TREE_CODE (decl) == VAR_DECL && ! TREE_READONLY (decl)))
+ && ! DECL_IN_SYSTEM_HEADER (decl)
&& ! TREE_USED (decl)
/* The TREE_USED bit for file-scope decls is kept in the identifier,
to handle multiple external decls in different scopes. */