$OpenBSD: patch-Makefile,v 1.3 2011/01/22 19:59:14 naddy Exp $
--- Makefile.orig	Sat Jan 22 20:28:45 2011
+++ Makefile	Sat Jan 22 20:29:27 2011
@@ -35,9 +35,9 @@ HDRS= assl.h
 
 afterinstall:
 	@cd ${.CURDIR}; for i in ${HDRS}; do \
-	cmp -s $$i ${PREFIX}/include/$$i || \
-	${INSTALL} ${INSTALL_COPY} -m 444 -o $(BINOWN) -g $(BINGRP) $$i ${PREFIX}/include; \
-	echo ${INSTALL} ${INSTALL_COPY} -m 444 -o $(BINOWN) -g $(BINGRP) $$i ${PREFIX}/include; \
+	cmp -s $$i ${DESTDIR}${PREFIX}/include/$$i || \
+	${INSTALL} ${INSTALL_COPY} -m 444 -o $(BINOWN) -g $(BINGRP) $$i ${DESTDIR}${PREFIX}/include; \
+	echo ${INSTALL} ${INSTALL_COPY} -m 444 -o $(BINOWN) -g $(BINGRP) $$i ${DESTDIR}${PREFIX}/include; \
 	done
 
 .include <bsd.own.mk>
