http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51063
--- Comment #2 from joseph at codesourcery dot com <joseph at codesourcery dot com> 2011-11-09 17:05:09 UTC --- This was supposed to have been fixed by: 2011-03-30 Christian Schueler <cschue...@gmx.de> PR driver/48208 * config/c.opt (F): Added 'Driver' to -F option. 2011-02-12 Iain Sandoe <ia...@gcc.gnu.org> * gcc.c (driver_handle_option): Concatenate the argument to -F with the switch. But it appears that the 2011-03-30 patch isn't on 4.6 branch.