[Bug middle-end/59849] New: GCC doesn't warn unused global const variable

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59849

            Bug ID: 59849
           Summary: GCC doesn't warn unused global const variable
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hjl.tools at gmail dot com

[hjl@gnu-mic-2 gcc]$ cat /tmp/w.c
static const int foo;
static int bar;
[hjl@gnu-mic-2 gcc]$ ./xgcc -B./ -Wall -c /tmp/w.c
/tmp/w.c:2:12: warning: ‘bar’ defined but not used [-Wunused-variable]
 static int bar;
            ^
[hjl@gnu-mic-2 gcc]$ 

GCC should also warn unused foo.