-OCAMLC = ocamlfind ocamlc $(OCAMLOPTIONS)
-OCAMLOPT = ocamlfind ocamlopt $(OCAMLOPTIONS)
-OCAMLDEP = ocamlfind ocamldep -package "$(REQUIRES)" -pp camlp4o
+ifeq ($(origin OCAMLPATH), undefined)
+OCAMLFIND = OCAMLPATH=../../components/METAS ocamlfind
+else
+OCAMLFIND = ocamlfind
+endif
+OCAMLC = $(OCAMLFIND) ocamlc $(OCAMLOPTIONS)
+OCAMLOPT = $(OCAMLFIND) ocamlopt $(OCAMLOPTIONS)
+OCAMLDEP = $(OCAMLFIND) ocamldep -package "$(REQUIRES)" -pp camlp4o