--- matchbox-window-manager-1.2/src/Makefile.am.orig	2012-10-04 22:03:53.032322871 +0200
+++ matchbox-window-manager-1.2/src/Makefile.am	2012-10-04 22:08:28.513862345 +0200
@@ -20,7 +20,7 @@ matchbox_remote_LDADD = $(LIBMB_LIBS)
 
 matchbox_remote_SOURCES = matchbox-remote.c 
 
-matchbox_window_manager_LDADD = $(LIBMB_LIBS) $(COMPO_LIBS) $(EXPAT_LIBS) $(SN_LIBS) $(GCONF_LIBS) $(XFIXES_LIBS) $(XCURSOR_LIBS)
+matchbox_window_manager_LDADD = $(LIBMB_LIBS) $(COMPO_LIBS) $(EXPAT_LIBS) $(SN_LIBS) $(GCONF_LIBS) $(XFIXES_LIBS) $(XCURSOR_LIBS) -lm
 
 matchbox_window_manager_SOURCES =                        \
 		   main.c structs.h wm.c wm.h            \