--- src/Makefile.am.orig	2009-03-24 14:01:25 UTC
+++ src/Makefile.am
@@ -3,6 +3,8 @@ lib_LTLIBRARIES = \
 
 libpuzzle_la_LDFLAGS = -version-info 1:0
 
+libpuzzle_la_LIBADD = -lm
+
 libpuzzle_la_SOURCES = \
 	puzzle.c \
 	tunables.c \