added including math header file

diff --git a/src/libgame/gadgets.c b/src/libgame/gadgets.c
index 5a7ad4ed999ed4f0231188e50f6ab9b13e32c87b..de2d8e0d095c87466dbfb340a89bc3e9f95274e7 100644 (file)
--- a/src/libgame/gadgets.c
+++ b/src/libgame/gadgets.c
@@ -11,6 +11,7 @@
 
 #include <stdarg.h>
 #include <string.h>
+#include <math.h>
 
 #include "gadgets.h"
 #include "image.h"