gcc -mno-cygwin and autoconf 2.50

[Teun Burgers]

Hi

I am maintaining the configure script for
gnugo (http://www.fsf.org/software/gnugo/)

Under autoconf 2.13 when you had AC_EXEEXT
in you configure.in you could do under cygwin
a mingw32 build as follows:

env CC='gcc -mno-cygwin' ./configure

AC_EXEEXT would set ac_cv_mingw32=yes,
so you were able to test for mingw32.

For instance I had the test
if test $ac_cv_mingw32=yes;then
   LIBS="$LIBS -lwsock32"
fi

Under autoconf 2.50 this does not work,
since ac_canonical_host will detect cygwin.

I can work around this by writing a header
test for __MINGW32__
What do you think is the best solution to this problem?

thanks

Teun Burgers