diffutils on interix

[Markus Duft]

Hi!

i have done the required bits to compile/use diffutils successfully on
interix. the according patch can be found at [1]. additionally i had to
do the following for diffutils to build (the complete build instructions
used on interix can be found at [2]):

51     if [[ ${CHOST} == *-interix* ]]; then
52         # on interix wchar support is broken...
53         export ac_cv_header_wchar_h=no
54         export ac_cv_header_wctype_h=no
55     fi

if there is anything else i can do, please ping me (i'm not
subscribed...) :)

[1]
http://overlays.gentoo.org/proj/alt/browser/trunk/prefix-overlay/sys-apps/diffutils/files/diffutils-2.8.7-interix.patch
[2]
http://overlays.gentoo.org/proj/alt/browser/trunk/prefix-overlay/sys-apps/diffutils/diffutils-2.8.7-r2.ebuild

Cheers, Markus Duft