http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54304
--- Comment #6 from Tobias Schlüter <tobi at gcc dot gnu.org> 2012-08-17 19:33:44 UTC --- Sorry, my mistake, it's ~/usr/lib not /usr/lib. I'll have to find out if that is included in any search path (I doubt it). About the one in /opt/local/lib I wasn't mistaken.