Index: build-tree/ocaml-3.12.1/otherlibs/systhreads/Makefile.nt
===================================================================
--- build-tree.orig/ocaml-3.12.1/otherlibs/systhreads/Makefile.nt	2011-10-09 04:22:50.187251500 +0200
+++ build-tree/ocaml-3.12.1/otherlibs/systhreads/Makefile.nt	2011-10-09 04:24:21.513567245 +0200
@@ -35,7 +35,7 @@
 allopt: lib$(LIBNAME).$(A) $(LIBNAME).cmxa $(LIBNAME).cmxs $(CMIFILES)
 
 $(LIBNAME).cma: $(CAMLOBJS)
-	$(MKLIB) -o $(LIBNAME) -ocamlc "..\\..\\boot\\ocamlrun ..\\..\\ocamlc" -linkall $(CAMLOBJS) $(LINKOPTS)
+	$(MKLIB) -o $(LIBNAME) -ocamlc "../../boot/ocamlrun ../../ocamlc" -linkall $(CAMLOBJS) $(LINKOPTS)
 
 lib$(LIBNAME).$(A): $(COBJS)
 	$(MKLIB) -o $(LIBNAME) $(COBJS) $(LDOPTS)
@@ -47,7 +47,7 @@
 
 
 $(LIBNAME).cmxa: $(CAMLOBJS:.cmo=.cmx)
-	$(MKLIB) -o $(LIBNAME)nat -ocamlopt "..\\..\\boot\\ocamlrun ..\\..\\ocamlopt" -linkall $(CAMLOBJS:.cmo=.cmx) $(LINKOPTS)
+	$(MKLIB) -o $(LIBNAME)nat -ocamlopt "../../boot/ocamlrun ../../ocamlopt" -linkall $(CAMLOBJS:.cmo=.cmx) $(LINKOPTS)
 	mv $(LIBNAME)nat.cmxa $(LIBNAME).cmxa
 	mv $(LIBNAME)nat.$(A) $(LIBNAME).$(A)
 
