http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55491
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-11-27 16:13:51 UTC --- The Obfuscated C Contest is this way: http://www.ioccc.org/ Why should anyone bother trying to work out what that does? At least fix the warnings and see if the error goes away.