--- a/tests/unit/geos_unit.cpp.old	2009-12-02 13:21:54.000000000 +0200
+++ a/tests/unit/geos_unit.cpp	2009-12-02 13:22:12.000000000 +0200
@@ -9,6 +9,7 @@
 #include <tut_reporter.hpp>
 // geos 
 #include <geos/unload.h>
+#include <stdlib.h>
 // std
 #include <cstdlib>
 #include <iomanip>
