* CMAKE: support -mbig-obj flag also on CYGWIN * CMAKE: find X11 on CYGWIN * CMAKE: Add CYGWIN as platform. * CMAKE: allow to use WINMM on CYGWIN.
* CMAKE: support -mbig-obj flag also on CYGWIN * CMAKE: find X11 on CYGWIN * CMAKE: Add CYGWIN as platform. * CMAKE: allow to use WINMM on CYGWIN.