--- a/deathchase3d/Makefile.in	2011-06-13 09:22:44.140587725 +0200
+++ b/deathchase3d/Makefile.in	2011-06-13 09:22:49.932942379 +0200
@@ -248,7 +248,7 @@
 bin_PROGRAMS = deathchase3d
 
 deathchase3d_SOURCES = treedraw.c tree.c sprites.c objects.c level.c io.c globals.c font.c draw.c main.c 
-deathchase3d_LDADD = 
+deathchase3d_LDADD = -lm
 
 SUBDIRS = docs