all: t.byte t.native
	./t.byte
	./t.native
clean:
	for dir in . p; do cd $$dir; rm -f *.ml *.o *.cm[iox] *.byte *.native; done
	rmdir p

.PRECIOUS: p/%.ml
p/%.ml:
	mkdir -p $(@D)
	echo >$@ "let f () = ()"
t.ml:
	echo  >$@ "let () = P.Pp.f (); print_endline \"P.Pp.f ()\""
	echo >>$@ "let () = P.P .f (); print_endline \"P.P .f ()\""

p/%.cmo: p/%.ml
	cd p; ocamlc   -c $*.ml
p/%.cmx: p/%.ml
	cd p; ocamlopt -c -for-pack P $*.ml

p.cmo: p/p.cmo p/pp.cmo
	cd p; ocamlc   -pack -o ../p.cmo p.cmo pp.cmo
p.cmx: p/p.cmx p/pp.cmx
	cd p; ocamlopt -pack -o ../p.cmx p.cmx pp.cmx

t.byte: p.cmo t.ml
	ocamlc -o $@ $^
t.native: p.cmx t.ml
	ocamlopt -o $@ $^