--- Makefile.orig	2010-06-16 03:32:26.000000000 +0200
+++ Makefile	2011-12-14 10:02:05.745076468 +0100
@@ -288,7 +288,7 @@
 	cp lex/ocamllex $(BINDIR)/ocamllex$(EXE)
 	cp yacc/ocamlyacc$(EXE) $(BINDIR)/ocamlyacc$(EXE)
 	cp toplevel/toplevellib.cma $(LIBDIR)/toplevellib.cma
-	cp expunge $(LIBDIR)/expunge$(EXE)
+	${BSD_INSTALL_SCRIPT} expunge $(LIBDIR)/expunge$(EXE)
 	cp typing/outcometree.cmi typing/outcometree.mli $(LIBDIR)
 	cp toplevel/topstart.cmo $(LIBDIR)
 	cp toplevel/toploop.cmi toplevel/topdirs.cmi toplevel/topmain.cmi \
