--- sys/unix/Makefile.top.orig	2014-10-22 13:50:35.000000000 +0900
+++ sys/unix/Makefile.top	2014-10-22 13:52:56.000000000 +0900
@@ -14,7 +14,6 @@
 # MAKE = make
 
 # make NetHack
-PREFIX	 = /usr
 GAME     = jnethack
 # GAME     = nethack.prg
 GAMEUID  = games
@@ -22,10 +21,10 @@
 
 # Permissions - some places use setgid instead of setuid, for instance
 # See also the option "SECURE" in include/config.h
-GAMEPERM = 04755
-FILEPERM = 0644
+GAMEPERM = 02755
+FILEPERM = 0664
 EXEPERM  = 0755
-DIRPERM  = 0755
+DIRPERM  = 0775
 
 # GAMEDIR also appears in config.h as "HACKDIR".
 # VARDIR may also appear in unixconf.h as "VAR_PLAYGROUND" else GAMEDIR
@@ -35,12 +34,12 @@
 # therefore there should not be anything in GAMEDIR that you want to keep
 # (if there is, you'll have to do the installation by hand or modify the
 # instructions)
-GAMEDIR  = $(PREFIX)/games/lib/$(GAME)dir
+GAMEDIR  = ${PREFIX}/share/jnethack
 VARDIR  = $(GAMEDIR)
-SHELLDIR = $(PREFIX)/games
+SHELLDIR = $(PREFIX)/bin
 
 # per discussion in Install.X11 and Install.Qt
-VARDATND = 
+# VARDATND = 
 # VARDATND = x11tiles NetHack.ad pet_mark.xbm
 # VARDATND = x11tiles NetHack.ad pet_mark.xbm rip.xpm
 # for Atari/Gem
@@ -48,7 +47,7 @@
 # for BeOS
 # VARDATND = beostiles
 # for Gnome
-# VARDATND = x11tiles pet_mark.xbm rip.xpm mapbg.xpm
+VARDATND = x11tiles pet_mark.xbm rip.xpm mapbg.xpm
 
 VARDATD = data joracles options quest.dat jrumors
 VARDAT = $(VARDATD) $(VARDATND)
@@ -185,55 +184,38 @@
 		-e '}' 					\
 	  	-e '$$s/.*/nodlb/p' < dat/options` ;	\
 	$(MAKE) dofiles-$${target-nodlb}
-	cp src/$(GAME) $(GAMEDIR)
-	cp util/recover $(GAMEDIR)
-	-rm -f $(SHELLDIR)/$(GAME)
+	${BSD_INSTALL_PROGRAM} src/$(GAME) ${DESTDIR}$(GAMEDIR)
+	${BSD_INSTALL_PROGRAM} util/recover ${DESTDIR}$(GAMEDIR)
+	-rm -f ${DESTDIR}$(SHELLDIR)/$(GAME)
 	sed -e 's;/usr/games/lib/nethackdir;$(GAMEDIR);' \
 		-e 's;HACKDIR/nethack;HACKDIR/$(GAME);' \
 		< sys/unix/nethack.sh \
-		> $(SHELLDIR)/$(GAME)
-# set up their permissions
-	-( cd $(GAMEDIR) ; $(CHOWN) $(GAMEUID) $(GAME) recover ; \
-			$(CHGRP) $(GAMEGRP) $(GAME) recover )
-	chmod $(GAMEPERM) $(GAMEDIR)/$(GAME)
-	chmod $(EXEPERM) $(GAMEDIR)/recover
-	-$(CHOWN) $(GAMEUID) $(SHELLDIR)/$(GAME)
-	$(CHGRP) $(GAMEGRP) $(SHELLDIR)/$(GAME)
-	chmod $(EXEPERM) $(SHELLDIR)/$(GAME)
+		> ${DESTDIR}$(SHELLDIR)/$(GAME)
 
 dofiles-dlb: check-dlb
-	( cd dat ; cp nhdat $(DATNODLB) $(GAMEDIR) )
+	( cd dat ; cp nhdat $(DATNODLB) ${DESTDIR}$(GAMEDIR) )
 #	( cd win/X11 ; cp JNetHack.ad $(GAMEDIR)/JNetHack )
 #	( cd win/gtk ; cp GTKRC $(GAMEDIR)/gtkrc )
 #	( bdftopcf win/X11/nh10.bdf > $(GAMEDIR)/nh10.pcf ; mkfontdir $(GAMEDIR))
-# set up their permissions
-	-( cd $(GAMEDIR) ; $(CHOWN) $(GAMEUID) nhdat $(DATNODLB) ; \
-			$(CHGRP) $(GAMEGRP) nhdat $(DATNODLB) ; \
-			chmod $(FILEPERM) nhdat $(DATNODLB) )
 
 dofiles-nodlb:
 # copy over the game files
-	( cd dat ; cp $(DAT) $(GAMEDIR) )
+	( cd dat ; cp $(DAT) ${DESTDIR}$(GAMEDIR) )
 #	( cd win/X11 ; cp JNetHack.ad $(GAMEDIR)/JNetHack )
 #	( cd win/gtk ; cp GTKRC $(GAMEDIR)/gtkrc )
 #	( bdftopcf win/X11/nh10.bdf > $(GAMEDIR)/nh10.pcf ; mkfontdir $(GAMEDIR))
-# set up their permissions
-	-( cd $(GAMEDIR) ; $(CHOWN) $(GAMEUID) $(DAT) ; \
-			$(CHGRP) $(GAMEGRP) $(DAT) ; \
-			chmod $(FILEPERM) $(DAT) )
 
 update: $(GAME) recover $(VARDAT) dungeon spec_levs
 #	(don't yank the old version out from under people who're playing it)
-	-mv $(GAMEDIR)/$(GAME) $(GAMEDIR)/$(GAME).old
+	-mv ${DESTDIR}$(GAMEDIR)/$(GAME) ${DESTDIR}$(GAMEDIR)/$(GAME).old
 #	quest.dat is also kept open and has the same problems over NFS
 #	(quest.dat may be inside nhdat if dlb is in use)
-	-mv $(GAMEDIR)/quest.dat $(GAMEDIR)/quest.dat.old
-	-mv $(GAMEDIR)/nhdat $(GAMEDIR)/nhdat.old
+	-mv ${DESTDIR}$(GAMEDIR)/quest.dat ${DESTDIR}$(GAMEDIR)/quest.dat.old
+	-mv ${DESTDIR}$(GAMEDIR)/nhdat ${DESTDIR}$(GAMEDIR)/nhdat.old
 # set up new versions of the game files
 	( $(MAKE) dofiles )
 # touch time-sensitive files
 	-touch -c $(VARDIR)/bones* $(VARDIR)/?lock* $(VARDIR)/wizard*
-	-touch -c $(VARDIR)/save/*
 	touch $(VARDIR)/perm $(VARDIR)/record
 # and a reminder
 	@echo You may also want to install the man pages via the doc Makefile.
@@ -241,20 +223,14 @@
 install: $(GAME) recover $(VARDAT) dungeon spec_levs
 # set up the directories
 # not all mkdirs have -p; those that don't will create a -p directory
-	-mkdir -p $(SHELLDIR)
-	-rm -rf $(GAMEDIR) $(VARDIR)
-	-mkdir -p $(SHELLDIR)/lib $(GAMEDIR) $(VARDIR) $(VARDIR)/save
+	-mkdir -p ${DESTDIR}$(SHELLDIR)
+	-rm -rf ${DESTDIR}$(GAMEDIR) ${DESTDIR}$(VARDIR)
+	-mkdir -p ${DESTDIR}$(GAMEDIR) ${DESTDIR}$(VARDIR) ${DESTDIR}$(VARDIR)/save
 	-rmdir ./-p
-	-$(CHOWN) $(GAMEUID) $(GAMEDIR) $(VARDIR) $(VARDIR)/save
-	$(CHGRP) $(GAMEGRP) $(GAMEDIR) $(VARDIR) $(VARDIR)/save
-	chmod $(DIRPERM) $(GAMEDIR) $(VARDIR) $(VARDIR)/save
 # set up the game files
 	( $(MAKE) dofiles )
 # set up some additional files
-	touch $(VARDIR)/perm $(VARDIR)/record $(VARDIR)/logfile
-	-( cd $(VARDIR) ; $(CHOWN) $(GAMEUID) perm record logfile ; \
-			$(CHGRP) $(GAMEGRP) perm record logfile ; \
-			chmod $(FILEPERM) perm record logfile )
+	touch ${DESTDIR}$(VARDIR)/perm ${DESTDIR}$(VARDIR)/record ${DESTDIR}$(VARDIR)/logfile
 # and a reminder
 	@echo You may also want to reinstall the man pages via the doc Makefile.