Add -mno-cygwin to CPPFLAGS on i386-unknown-mingw32 to stop configure.h
getting lots of bogus headers that aren't there. I'm not at all sure why
this hasn't caused problems before...
# the gcc command-line used here with -mno-cygwin to
# arrange for good things to happen.
CFLAGS="-mno-cygwin $CFLAGS"
+ CPPFLAGS="-mno-cygwin $CPPFLAGS"
;;
m68k-next-nextstep2)
HostPlatform_CPP='m68k_next_nextstep2'