When cross-compiling with the mingw toolchain on a system with a case
sensitive filesystem, the mixed case (which is technically correct as
per the contents of MS Visual C++) doesn't work (the corresponding mingw
headers are all lowercase for some reason).
Signed-off-by: Mike Hommey <mh@glandium.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>