diff -r 000000000000 -r 76b1f169d9fe mingw-5.1.4/win32/include/zmouse.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mingw-5.1.4/win32/include/zmouse.h	Fri Apr 03 17:16:45 2009 +0100
@@ -0,0 +1,36 @@
+/*
+       zmouse.h - Header for IntelliMouse.
+
+       This file is part of a free library for the Win32 API.
+
+       This library is distributed in the hope that it will be useful,
+       but WITHOUT ANY WARRANTY; without even the implied warranty of
+       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+       FIXME: This file is obviously horribly incomplete!
+
+*/
+
+#ifndef _ZMOUSE_H
+#define _ZMOUSE_H
+#if __GNUC__ >=3
+#pragma GCC system_header
+#endif
+
+#ifndef WM_MOUSEWHEEL
+# define WM_MOUSEWHEEL (WM_MOUSELAST + 1)
+#endif
+
+#ifndef WHEEL_DELTA
+# define WHEEL_DELTA 120
+#endif
+
+#ifndef WHEEL_PAGESCROLL
+# define WHEEL_PAGESCROLL UINT_MAX
+#endif
+
+#ifndef SPI_SETWHEELSCROLLLINES
+# define SPI_SETWHEELSCROLLLINES 105
+#endif
+
+#endif /* _ZMOUSE_H */