define M_PI if needed

2008-01-22 07:43:43 -07:00
parent d0774eae30
commit e58c365cda
2 changed files with 8 additions and 0 deletions
--- a/progs/demos/engine.c
+++ b/progs/demos/engine.c
@@ -16,6 +16,10 @@
 #include "trackball.h"


+#ifndef M_PI
+#define M_PI 3.14159265358979323846
+#endif
+
 #define DEG_TO_RAD(DEG)  ((DEG) * M_PI / 180.0)

 #define TEXTURE_FILE "../images/reflect.rgb"