[PATCH] adjust to mingw sysroot

[Christopher Faylor]

On Mon, Aug 09, 2010 at 05:38:36PM -0500, Yaakov (Cygwin/X) wrote:
>winsup/utils/mingw will break once mingw-* moves into a sysroot.  The
>attached patch allows for the sysroot without (hopefully) breaking
>pre-sysroot installations.
>
>It may be a bit premature to commit this, but this transition will
>otherwise break the Cygwin build so I didn't want any surprises.

This what I planned on doing once things stabilized but if the location
has stabilized then please commit.

Thanks.

cgf