--- ncurses-6.0.orig/include/curses.h.in	2014-08-09 22:39:44.000000000 +0200
+++ ncurses-6.0/include/curses.h.in	2016-04-09 20:47:14.266679000 +0200
@@ -1420,3 +1420,15 @@
 #define KEY_BREAK	0401		/* Break key (unreliable) */
 #define KEY_SRESET	0530		/* Soft (partial) reset (unreliable) */
 #define KEY_RESET	0531		/* Reset or hard reset (unreliable) */
+
+#ifdef __MINGW32__
+/* Windows API headers, included e.g. by serial.h, define MOUSE_MOVED,
+   and so does PDCurses's curses.h, but for an entirely different
+   purpose.  Since we don't use the Windows semantics of MOUSE_MOVED
+   anywhere, avoid compiler warnings by undefining MOUSE_MOVED before
+   including curses.h.  */
+#undef MOUSE_MOVED
+/* Likewise, KEY_EVENT is defined by ncurses.h, but also by Windows
+   API headers.  */
+#undef KEY_EVENT
+#endif