--- configure.ac.orig	2017-02-03 10:04:23.243912983 -0500
+++ configure.ac	2017-02-03 10:04:32.643958586 -0500
@@ -49,7 +49,7 @@
 # Handle Xpoll.h.in
 # Avoid determining fds_bits on WIN32 hosts (not including cygwin)
 case $host_os in
-	mingw*)		fds_bits_found=true;;
+	mingw*|*msys*)		fds_bits_found=true;;
 	*)		fds_bits_found=false;;
 esac