Cygwin: Change mklib not to report the full archname on cygwin

Change mklib not to report the full archname when building a library for cygwin
(which is something like 'CYGWIN_NT-5.1' or 'CYGWIN_NT-6.1-WOW64' and kind of
confusing), but just 'CYGWIN'.

Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Signed-off-by: Brian Paul <brianp@vmware.com>
1 file changed