Fix MPFR build to recognise the Mingw32 case.
Once we have canadian in place, Mingw32 can be a legitimate host,
so we have to recognise that along with Cygwin.
Also fix recognising Cygwin hosts.
Signed-off-by: Bart van der Meulen <bartvdrmeulen@gmail.com>
1 source config/global.in
2 source config/target.in
3 source config/toolchain.in
4 source config/kernel.in
5 source config/companion_libs.in
6 source config/binutils.in
10 source config/debug.in