[Bug c++/55810] pedantic-errors can not show message for redefined macros in system_header

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55810

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-12-26 03:41:19 UTC ---
You need -Wsystem-headers so GCC does not suppress warnings/pedatic errors from
system headers.