From 9277ec1628a788775495a0d23a318e3a1425755c Mon Sep 17 00:00:00 2001
From: Sam Lantinga <slouken@libsdl.org>
Date: Mon, 5 Jan 2009 06:35:16 +0000
Subject: [PATCH] define this value if it's not in the system headers

---
 src/video/x11/SDL_x11mouse.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/video/x11/SDL_x11mouse.c b/src/video/x11/SDL_x11mouse.c
index 9d162ae2f..0ddc04bbb 100644
--- a/src/video/x11/SDL_x11mouse.c
+++ b/src/video/x11/SDL_x11mouse.c
@@ -122,6 +122,9 @@ X11_InitMouse(_THIS)
                     } else {
                         SDL_AddMouse(&mouse, DevList[i].name, 0, 0, 1);
                     }
+#ifndef IsXExtensionPointer
+#define IsXExtensionPointer 4
+#endif
                     if (DevList[i].use == IsXExtensionPointer) {
                         ++num_mice;
                     }