Xpoll.h.in: Fix WIN32 check to trigger on MinGW only

MinGW-w64 w32api-headers 3.0.0 define WIN32 in some places they didn't before,
which causes this check to turn on for Cygwin, which is not wanted.

Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Yaakov Selkowitz <yselkowitz@users.sourceforge.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/Xpoll.h.in b/Xpoll.h.in
index 8275658..0a05424 100644
--- a/Xpoll.h.in
+++ b/Xpoll.h.in
@@ -50,7 +50,7 @@ from The Open Group.
 #ifndef _XPOLL_H_
 #define _XPOLL_H_
 
-#ifndef WIN32
+#if !defined(WIN32) || defined(__CYGWIN__)
 
 #ifndef USE_POLL