--- trunk/src/icons.c	2009/08/12 12:16:05	51
+++ trunk/src/icons.c	2009/08/12 19:18:53	53
@@ -18,6 +18,7 @@
  */
 
 #include "gpxview.h"
+#include <math.h>     // for isnan()
 
 struct icon_data {
   GdkPixbuf **data;