From http://www.jwz.org/xscreensaver/xscreensaver-5.29.tar.gz

[xscreensaver] / hacks / glx / kaleidocycle.c

diff --git a/hacks/glx/kaleidocycle.c b/hacks/glx/kaleidocycle.c
index 025e45b40f284c9cca869b59e8c535adc1dda79f..e28aa0caf9d3e9f5a794142af74c5e8fa198039c 100644 (file)
--- a/hacks/glx/kaleidocycle.c
+++ b/hacks/glx/kaleidocycle.c
@@ -31,6 +31,7 @@
 #include "rotator.h"
 #include "gltrackball.h"
 #include <ctype.h>
+#include <math.h>
 
 #ifdef USE_GL /* whole file */