$NetBSD: patch-Makefile,v 1.2 2023/01/16 04:10:47 dholland Exp $

* Honor PKGMANDIR.
* Fix DESTDIR installation of man pages.

--- Makefile.orig	2019-08-12 17:00:59.000000000 +0000
+++ Makefile
@@ -2,7 +2,8 @@ PREFIX ?= /usr/local
 DATADIR ?= $(PREFIX)/share/RETRO12
 DOCSDIR ?= $(PREFIX)/share/doc/RETRO12
 EXAMPLESDIR ?= $(PREFIX)/share/examples/RETRO12
-MANDIR ?= $(PREFIX)/man/man1
+PKGMANDIR ?= man
+MANDIR ?= $(PREFIX)/$(PKGMANDIR)/man1
 LIBM ?= -lm
 
 all: build
@@ -61,13 +62,14 @@ install-examples:
 	cp -fpR example $(DESTDIR)$(EXAMPLESDIR)
 
 install-manpages:
-	install -c -m 644 man/retro.1 $(MANDIR)/retro.1
-	install -c -m 644 man/retro-embedimage.1 $(MANDIR)/retro-embedimage.1
-	install -c -m 644 man/retro-extend.1 $(MANDIR)/retro-extend.1
-	install -c -m 644 man/retro-describe.1 $(MANDIR)/retro-describe.1
-	install -c -m 644 man/retro-document.1 $(MANDIR)/retro-document.1
-	install -c -m 644 man/retro-muri.1 $(MANDIR)/retro-muri.1
-	install -c -m 644 man/retro-unu.1 $(MANDIR)/retro-unu.1
+	install -m 755 -d -- $(DESTDIR)$(MANDIR)
+	install -c -m 644 man/retro.1 ${DESTDIR}$(MANDIR)/retro.1
+	install -c -m 644 man/retro-embedimage.1 ${DESTDIR}$(MANDIR)/retro-embedimage.1
+	install -c -m 644 man/retro-extend.1 ${DESTDIR}$(MANDIR)/retro-extend.1
+	install -c -m 644 man/retro-describe.1 ${DESTDIR}$(MANDIR)/retro-describe.1
+	install -c -m 644 man/retro-document.1 ${DESTDIR}$(MANDIR)/retro-document.1
+	install -c -m 644 man/retro-muri.1 ${DESTDIR}$(MANDIR)/retro-muri.1
+	install -c -m 644 man/retro-unu.1 ${DESTDIR}$(MANDIR)/retro-unu.1
 
 test: bin/retro
 	./bin/retro tests/test-core.forth