From http://www.jwz.org/xscreensaver/xscreensaver-5.18.tar.gz

[xscreensaver] / hacks / glx / gltrackball.c

diff --git a/hacks/glx/gltrackball.c b/hacks/glx/gltrackball.c
index c0ccaa133d54f246f8e53a170b63733a8c40333b..93d4c54263ef97e2610616d794013e10f0acbc5d 100644 (file)
--- a/hacks/glx/gltrackball.c
+++ b/hacks/glx/gltrackball.c
@@ -29,6 +29,8 @@
 #include "trackball.h"
 #include "gltrackball.h"
 
+extern double current_device_rotation (void);  /* Bah, it's in fps.h */
+
 struct trackball_state {
   int x, y;
   GLfloat q[4];
@@ -55,6 +57,7 @@ gltrackball_reset (trackball_state *ts)
   trackball (ts->q, 0, 0, 0, 0);
 }
 
+
 /* Begin tracking the mouse: Call this when the mouse button goes down.
    x and y are the mouse position relative to the window.
    w and h are the size of the window.