--- Makefile.orig	2010-04-19 10:04:10.000000000 -0700

+++ Makefile	2010-04-19 10:38:02.000000000 -0700

@@ -131,14 +131,14 @@

     OGL_LIBS  := -framework OpenGL

 endif

-BASE_LIBS := -ljpeg $(PNG_LIBS) $(FS_LIBS)

+BASE_LIBS := -ljpeg $(PNG_LIBS) $(FS_LIBS) -lm

 ifdef DARWIN

     BASE_LIBS += -L/opt/local/lib

 endif

 ALL_LIBS := $(SDL_LIBS) $(BASE_LIBS) $(TILT_LIBS) $(INTL_LIBS) -lSDL_ttf \

-    -lvorbisfile $(OGL_LIBS)

+    -lvorbisfile $(OGL_LIBS) -lX11

 #------------------------------------------------------------------------------