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

[rguenth at gcc dot gnu.org]

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

--- Comment #6 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-12-02 16:20:56 UTC ---
(In reply to comment #3)
> On Fri, Dec 2, 2011 at 3:51 PM, rguenth at gcc dot gnu.org
> <gcc-bugzilla@gcc.gnu.org> wrote:
> > I see
> >
> >> gcc-4.3 -c -Wno-narrowing t.c -DHAVE_ARG
> > cc1: error: unrecognized command line option "-Wno-narrowing"
> >
> > with FSF GCC 4.3.6.  So, are you sure this isn't behavior caused by
> > vendor patches?  (openSUSE GCC 4.3 also works)
> 
> What do you see with "gcc-4.3 -c -Wno-narrowing t.c"?
> 
> FWIW this is Debian GCC 4.3.2-1.1 on gcc17.

> /space/rguenther/install/gcc-4.3.2/bin/gcc -c -Wno-narrowing t.c
cc1: error: unrecognized command line option "-Wno-narrowing"