$NetBSD: patch-Makefile,v 1.4 2020/03/12 11:12:45 jaapb Exp $

Install into DESTDIR

--- Makefile.orig	2017-04-12 15:33:01.000000000 +0000
+++ Makefile
@@ -103,8 +103,9 @@ man: all batteries.odocl
 	-mkdir man
 	ocamlfind ocamldoc -package threads.posix -sort -man -hide-warnings -d man -I _build/libs -I _build/src libs/uniclib.mli src/*.mli
 
-install: all uninstall_packages
-	ocamlfind install $(NAME) $(INSTALL_FILES) \
+install: all
+	ocamlfind install $(NAME) -destdir ${DESTDIR}${PREFIX}/lib/ocaml/site-lib \
+		$(INSTALL_FILES) \
 		-optional $(OPT_INSTALL_FILES)
 
 test_install: