[Bug bootstrap/51388] Configure failure to detect unsupported warning options for non-bootstrap builds (including cross builds)

[andreast at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51388

--- Comment #12 from Andreas Tobler <andreast at gcc dot gnu.org> 2011-12-20 15:57:36 UTC ---
Seems to work. At least in stage one, compiling gcc.

Thank you!