--- Makefile.orig	Wed Mar  7 15:50:40 2007
+++ Makefile	Wed Mar  7 15:51:29 2007
@@ -1,3 +1,3 @@
 # add -noassert for speedup
 all: freetennis.ml 
-	ocamlopt   -I +camlimages  -I +lablGL -I +lablgtk2    -I +sdl -o freetennis  bigarray.cmxa sdl.cmxa lablgtk.cmxa lablgl.cmxa  ci_core.cmxa  sdlmixer.cmxa sdlttf.cmxa unix.cmxa freetennis.ml
+	ocamlopt -noassert -cclib -pthread   -I +camlimages  -I +lablGL -I +lablgtk2    -I +site-lib/sdl -o freetennis  bigarray.cmxa sdl.cmxa lablgtk.cmxa lablgl.cmxa  ci_core.cmxa  sdlmixer.cmxa sdlttf.cmxa unix.cmxa freetennis.ml