Patch to fix cygwin-xfree+gcc-2.95.3+autoconf problem

[Harold Hunt]

I recently stumbled across a message you wrote way back in March 2001:
http://list-archive.xemacs.org/xemacs-patches/200103/msg00082.html

I notice that you say that cygwin.cf shouldn't be defining __STDC__ in
StandardDefines.  I can see that linux.cf and darwin.cf do not define
__STDC__ in StandardDefines, but I don't know why we should not be defining
it either.

A quick and explanation would get this problem quickly remedied (I like to
do things correctly, so I'd like to fix this problem).

Thanks,

Harold