--- Makefile.orig	2018-05-11 21:42:28 UTC
+++ Makefile
@@ -3,8 +3,5 @@ install:
 all:	# Do nothing - this is a python script that needs no build
 
 install:
-	install -c -o root -g wheel -m 755 ./tdir ${PREFIX}/bin
-	install -c -o root -g wheel -m 644 ./tdir.1.gz ${PREFIX}/man/man1
-	mkdir ${PREFIX}/share/doc/tdir
-	install -c -o root -g wheel -m 644 ./tdir-license.txt ${PREFIX}/share/doc/tdir
-
+	${BSD_INSTALL_SCRIPT} ./tdir ${DESTDIR}${PREFIX}/bin
+	${BSD_INSTALL_MAN}  ./tdir.1.gz ${DESTDIR}${PREFIX}/share/man/man1