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

[xscreensaver] / hacks / glx / trackball.c

diff --git a/hacks/glx/trackball.c b/hacks/glx/trackball.c
index 617a0bb17c487bc77130b68f29d34cdebe493be1..429ade91ebd80ad6ccb70ebc9f0540fd8ba74bb6 100644 (file)
--- a/hacks/glx/trackball.c
+++ b/hacks/glx/trackball.c
@@ -72,6 +72,7 @@
  */
 static float tb_project_to_sphere(float, float, float);
 static void normalize_quat(float [4]);
+static void axis_to_quat(float a[3], float phi, float q[4]);
 
 static void
 vzero(float *v)