--- IO-AIO/AIO.pm	2015/06/25 13:34:28	1.253
+++ IO-AIO/AIO.pm	2015/06/25 13:42:18	1.254
@@ -2132,8 +2132,9 @@
 
 This is a direct interface to the Linux L<pipe2(2)> system call. If
 C<$flags> is missing or C<0>, then this should be the same as a call to
-perl's built-in C<pipe> function and create a new pipe, and should work
-everywhere.
+perl's built-in C<pipe> function and create a new pipe, and works on
+systems that lack the pipe2 syscall. On win32, this case invokes C<_pipe
+(..., 4096, O_BINARY)>.
 
 If C<$flags> is non-zero, it tries to invoke the pipe2 system call with
 the given flags (Linux 2.6.27, glibc 2.9).