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+#  You may distribute under the terms of either the GNU General Public License
+#  or the Artistic License (the same terms as Perl itself)
+#
+#  (C) Paul Evans, 2013 -- leonerd@leonerd.org.uk
+
+package IO::Async::OS::cygwin;
+
+use strict;
+use warnings;
+
+our $VERSION = '0.67';
+
+our @ISA = qw( IO::Async::OS::_Base );
+
+# Cygwin almost needs no hinting above the POSIX-like base, except that its
+# emulation of poll() isn't quite perfect. It needs POLLPRI
+use constant HAVE_POLL_CONNECT_POLLPRI => 1;
+
+# Also select() only reports connect() failures by evec, not wvec
+use constant HAVE_SELECT_CONNECT_EVEC => 1;
+
+=head1 NAME
+
+C<IO::Async::OS::cygwin> - operating system abstractions on C<cygwin> for C<IO::Async>
+
+=head1 DESCRIPTION
+
+This module contains OS support code for C<cygwin>.
+
+See instead L<IO::Async::OS>.
+
+=cut
+
+=head1 AUTHOR
+
+Paul Evans <leonerd@leonerd.org.uk>
+
+=cut
+
+0x55AA;