=head1 BUGS ON CYGWIN
-When I<make> starts, it warns about overriding commands for F<perlmain.o>.
-
Support for swapping real and effective user and group IDs is incomplete.
On WinNT Cygwin provides setuid(), seteuid(), setgid() and setegid().
However, additional Cygwin calls for manipulating WinNT access tokens