--- gosm/poi/RTree/gammavol.c	Sat Oct  3 16:04:42 2009
+++ gosm-patch/poi/RTree/gammavol.c	Sat Jul 17 13:22:18 2010
@@ -10,7 +10,7 @@
 
 #define EP .0000000001
 
-const double log_pi = log(M_PI);
+double log_pi;
 
 double sphere_volume(double dimension)
 {
@@ -24,6 +24,7 @@
 int main()
 {
 	double dim=0, delta=1;
+	log_pi = log(M_PI);
 	while(ABS(delta) > EP)
 		if(sphere_volume(dim + delta) > sphere_volume(dim))
 			dim += delta;