Portability fix: Replaced problematic includes
diff --git a/lib/receiver/receiver_config.cc b/lib/receiver/receiver_config.cc
index b5745ed..5c3363a 100644
--- a/lib/receiver/receiver_config.cc
+++ b/lib/receiver/receiver_config.cc
@@ -23,8 +23,10 @@
 #include "config.h"
 #endif
 
+#include <cmath>
 #include <receiver_config.h>
 
+
 burst_counter & burst_counter::operator++(int)
 {
   d_timeslot_nr++;