Index: monkey-bubble/src/net/Makefile.am
===================================================================
--- monkey-bubble.orig/src/net/Makefile.am	2013-04-07 00:15:52.798001549 -0400
+++ monkey-bubble/src/net/Makefile.am	2013-04-07 00:16:16.554000555 -0400
@@ -31,7 +31,8 @@
 	libmonkeynet.a \
 	../monkey/libmonkey.a \
 	../util/libmonkeyutil.a \
-	$(MONKEY_SRV_LIBS)
+	$(MONKEY_SRV_LIBS) \
+	-lm
 
 $(libmonkeynet_a_OBJECTS): $(marshal_sources)