$NetBSD: patch-Makefile.in,v 1.2 2022/05/03 18:29:18 jaapb Exp $

Install into the right DESTDIR

--- Makefile.in.orig	2008-11-08 11:19:40.000000000 +0000
+++ Makefile.in
@@ -43,10 +43,10 @@ install : findlib-install
 ifeq ($(DESTDIR),)
 DESTDIR_FLAGS =
 else
-DESTDIR_FLAGS = -destdir $(DESTDIR)
+DESTDIR_FLAGS = -destdir $(DESTDIR)$(PREFIX)/lib/ocaml/site-lib/
 findlib-install : install-mkdir
 install-mkdir :
-	test -d $(DESTDIR) || mkdir -p $(DESTDIR)
+	test -d $(DESTDIR)$(PREFIX)/lib/ocaml/site-lib/ || mkdir -p $(DESTDIR)$(PREFIX)/lib/ocaml/site-lib/
 endif
 else
 install : normal-install