--- src/Makefile.in.orig	2010-03-26 21:59:40.000000000 -0500
+++ src/Makefile.in	2010-03-26 18:02:53.000000000 -0500
@@ -110,7 +110,7 @@
 	load_save.c load_save.h non_gui_defs.h
 
 
-greyhounds_LDADD = @PACKAGE_LIBS@ $(INTLLIBS)
+greyhounds_LDADD = @PACKAGE_LIBS@ $(INTLLIBS) -lm
 subdir = src
 mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
 CONFIG_HEADER = $(top_builddir)/config.h