--- Python-3.4.3-orig/Modules/selectmodule.c	2015-02-25 05:27:46.000000000 -0600
+++ Python-3.4.3/Modules/selectmodule.c	2015-05-05 13:58:58.914394500 -0500
@@ -4,6 +4,16 @@
 #define _GNU_SOURCE
 #endif
 
+/* Windows #defines FD_SETSIZE to 64 if FD_SETSIZE isn't already defined.
+   64 is too small (too many people have bumped into that limit).
+   Here we boost it.
+   Users who want even more than the boosted limit should #define
+   FD_SETSIZE higher before this; e.g., via compiler /D switch.
+*/
+#if (defined(MS_WINDOWS) || defined(__CYGWIN__)) && !defined(FD_SETSIZE)
+#define FD_SETSIZE 512
+#endif
+
 #include "Python.h"
 #include <structmember.h>
 
@@ -22,16 +32,6 @@
 #undef HAVE_BROKEN_POLL
 #endif
 
-/* Windows #defines FD_SETSIZE to 64 if FD_SETSIZE isn't already defined.
-   64 is too small (too many people have bumped into that limit).
-   Here we boost it.
-   Users who want even more than the boosted limit should #define
-   FD_SETSIZE higher before this; e.g., via compiler /D switch.
-*/
-#if defined(MS_WINDOWS) && !defined(FD_SETSIZE)
-#define FD_SETSIZE 512
-#endif
-
 #if defined(HAVE_POLL_H)
 #include <poll.h>
 #elif defined(HAVE_SYS_POLL_H)