[Bug c/21159] [4.0/4.1 Regression] "no effect" warning despite cast to void*

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |minor
           Keywords|                            |diagnostic
            Summary|"no effect" warning despite |[4.0/4.1 Regression] "no
                   |cast to void*               |effect" warning despite cast
                   |                            |to void*
   Target Milestone|---                         |4.0.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21159