added install option to makefile and a manpage

Makefile

@@ -2,6 +2,8 @@ TARGET = quest
 LIBS   = -lm -luiohook
 CC     = gcc
 CFLAGS = -g -Wall
+INSTALL_PATH = /usr/local
+VERSION = 0.5.0
 
 .PHONY: default all clean
 
@@ -22,3 +24,15 @@ $(TARGET): $(OBJECTS)
 clean:
 	-rm -f *.o
 	-rm -f $(TARGET)
+
+install: all
+	mkdir -p $(DESTDIR)$(INSTALL_PATH)/bin
+	cp -f $(TARGET) $(DESTDIR)$(INSTALL_PATH)/bin
+	chmod 755 $(DESTDIR)$(INSTALL_PATH)/bin/$(TARGET)
+	mkdir -p $(DESTDIR)$(INSTALL_PATH)/share/man/man1
+	sed "s/VERSION/$(VERSION)/g" < docs/$(TARGET).1 > $(DESTDIR)$(INSTALL_PATH)/share/man/man1/$(TARGET).1
+	chmod 644 $(DESTDIR)$(INSTALL_PATH)/share/man/man1/$(TARGET).1
+
+uninstall:
+	rm -f $(DESTDIR)$(INSTALL_PATH)/bin/$(TARGET)\
+		$(DESTDIR)$(INSTALL_PATH)/share/man/man1/$(TARGET).1