diff --git a/Makefile b/Makefile
index 4526342..8a74b7d 100644
--- a/Makefile
+++ b/Makefile
@@ -3,83 +3,62 @@
 #-O3 --std=c99 -lcurses -DNO_MOUSE for NetBSD curses
 #adding --std=c99 makes warnings in GNU, and the blame is upon glibc feature test macros. my code is correct.
 
-GAMES_DIR?=/usr/games
-SCORES_DIR?=/var/games
-MAN_DIR?=/usr/share/man/man6
-CFLAGS+=  -Wno-unused-result -D SCORES_DIR=\"$(SCORES_DIR)\"
-PKG-CONFIG=pkg-config
-LDFLAGS+= $(shell pkg-config --libs --cflags ncurses) -lm
+GAMESDIR?=$(PREFIX)/usr/games
+SCORESDIR?=$(PREFIX)/var/games
+MANDIR?=$(PREFIX)/usr/share/man/man6
+CFLAGS+= -Wno-unused-result -DSCORES_DIR=\"$(PREFIX)$(SCORESDIR)\"
+LIBS_PKG_CONFIG!=pkg-config --libs --cflags ncurses
+LIBS=$(LIBS_PKG_CONFIG) -lm
 
 
 ALL= nbsdgames jewels sudoku mines reversi checkers battleship rabbithole sos pipes fifteen memoblocks fisher muncher miketron redsquare darrt snakeduel tugow
 SCORE_FILES= pipes_scores jewels_scores miketron_scores muncher_scores fisher_scores darrt_scores tugow_scores
 
-all: $(ALL) 
+all: $(ALL)
 
 scorefiles:
-	for sf in $(SCORE_FILES); do touch $(SCORES_DIR)/$$sf ; chmod 664 $(SCORES_DIR)/$$sf; chown :games $(SCORES_DIR)/$$sf ; done;
-	for game in $(ALL); do chown :games $(GAMES_DIR)/$$game; chmod g $(GAMES_DIR)/$$game ; done;
+	for sf in $(SCORE_FILES); do touch $(DESTDIR)$(SCORESDIR)/$$sf ; chmod 664 $(DESTDIR)$(SCORESDIR)/$$sf; chown :games $(DESTDIR)$(SCORESDIR)/$$sf ; done;
+	for game in $(ALL); do chown :games $(DESTDIR)$(GAMESDIR)/$$game; chmod g $(DESTDIR)$(GAMESDIR)/$$game ; done;
 
 manpages:
-	cp man/* $(MAN_DIR)
-jewels: jewels.c config.h common.h
-	$(CC) jewels.c $(LDFLAGS) $(CFLAGS) -o ./jewels
-sudoku: sudoku.c config.h 
-	$(CC) sudoku.c $(LDFLAGS) $(CFLAGS)  -o ./sudoku
-mines: mines.c config.h
-	$(CC) mines.c $(LDFLAGS) $(CFLAGS) -o ./mines
-reversi: reversi.c config.h
-	$(CC) reversi.c $(LDFLAGS) $(CFLAGS)  -o ./reversi
-checkers: checkers.c config.h
-	$(CC) checkers.c $(LDFLAGS) $(CFLAGS) -o ./checkers
-battleship: battleship.c config.h
-	$(CC) battleship.c $(LDFLAGS) $(CFLAGS) -o ./battleship
-rabbithole: rabbithole.c config.h
-	$(CC) rabbithole.c $(LDFLAGS) $(CFLAGS) -o ./rabbithole
-sos: sos.c config.h
-	$(CC) sos.c $(LDFLAGS) $(CFLAGS) -o ./sos
-pipes: pipes.c config.h common.h
-	$(CC) pipes.c $(LDFLAGS) $(CFLAGS) -o ./pipes
-fifteen: fifteen.c config.h
-	$(CC) fifteen.c $(LDFLAGS) $(CFLAGS) -o ./fifteen
-memoblocks: memoblocks.c
-	$(CC) memoblocks.c $(LDFLAGS) $(CFLAGS) -o ./memoblocks
-fisher: fisher.c config.h common.h
-	$(CC) fisher.c $(LDFLAGS) $(CFLAGS) -o ./fisher
-muncher: muncher.c config.h common.h
-	$(CC) muncher.c $(LDFLAGS) $(CFLAGS) -o ./muncher
-miketron: miketron.c config.h common.h
-	$(CC) miketron.c $(LDFLAGS) $(CFLAGS) -o ./miketron
-redsquare: redsquare.c config.h
-	$(CC) redsquare.c $(LDFLAGS) $(CFLAGS) -o ./redsquare
-darrt: darrt.c config.h common.h
-	$(CC) darrt.c $(LDFLAGS) $(CFLAGS)  -o ./darrt
-nbsdgames: nbsdgames.c
-	$(CC) nbsdgames.c $(LDFLAGS) $(CFLAGS) -o ./nbsdgames
-snakeduel: snakeduel.c config.h
-	$(CC) snakeduel.c $(LDFLAGS) $(CFLAGS)  -o ./snakeduel
-tugow: tugow.c common.h
-	$(CC) tugow.c $(LDFLAGS) $(CFLAGS) -o ./tugow
+	cp man/* $(DESTDIR)$(MANDIR)
+
+# Games which only need config.h
+sudoku mines reversi checkers battleship rabbithole sos fifteen redsquare snakeduel: config.h
+	$(CC) $(CFLAGS) $@.c $< $(LDFLAGS) $(LIBS) -o $@
+
+# Games which need config.h and common.h
+jewels pipes fisher muncher miketron darrt: config.h common.h
+	$(CC) $(CFLAGS) $@.c $< $(LDFLAGS) $(LIBS) -o $@
+
+# Games which only need common.h
+tugow: common.h
+	$(CC) $(CFLAGS) $@.c $< $(LDFLAGS) $(LIBS) -o $@
+
+# Games which only need themselves
+memoblocks nbsdgames:
+	$(CC) $(CFLAGS) $@.c $< $(LDFLAGS) $(LIBS) -o $@
+
 menu:
-	cp nbsdgames.desktop /usr/share/applications
-	cp nbsdgames.svg /usr/share/pixmaps
+	cp nbsdgames.desktop $(DESTIDR)$(PREFIX)/usr/share/applications
+	cp nbsdgames.svg $(DESTDIR)$(PREFIX)/usr/share/pixmaps
 clean:
 	for game in $(ALL); do rm $$game; done;
 uninstall:
-	for game in $(ALL); do rm $(GAMES_DIR)/$$game; rm $(MAN_DIR)/$$game.6.gz ;done;
+	for game in $(ALL); do rm $(GAMESDIR)/$$game; rm $(MANDIR)/$$game.6.gz ;done;
 install: $(ALL)
-	cp $(ALL)  $(GAMES_DIR)
+	cp $(ALL) $(DESTDIR)/$(GAMESDIR)
 test:
 	for game in $(ALL); do ./$$game ;done;
 
 #######for namespacing #######
 nb:
-	CFLAGS="$$CFLAGS -D NB=\\\"nb\\\"" make
+	CFLAGS="$$CFLAGS -D NB=\\\"nb\\\"" $(MAKE)
 	for game in $(ALL); do cp $$game nb$$game ;done;
 	for manpage in $(ls man); do cp man/$$manpage man/nb$$manpage ;done;
 nbinstall: nb 
-	cp nb* $(GAMES_DIR)
+	cp nb* $(DESTDIR)/$(GAMESDIR)
 nbmanpages: nb
-	cp man/nb* $(MAN_DIR)
+	cp man/nb* $(DESTDIR)/$(MANDIR)
 nbclean:
 	for game in $(ALL); do rm nb$$game; done;