Update Makefile

Makefile

@@ -13,6 +13,7 @@ endif
 export E Q
 
 PROGRAM = yait
+TARBALL = $(PROGRAM).tar
 SRC     = $(wildcard *.c)
 OBJ     = $(SRC:.c=.o)
 HDR     = $(wildcard *.h)
@@ -37,6 +38,9 @@ clean:
 install: $(PROGRAM)
 	cp $(PROGRAM) ${BINDIR}
 
+release: $(PROGRAM)
+	tar cvf $(TARBALL) $(SRC) $(HDR) Makefile README
+
 .c.o:
 	$(E) "  CC      " $@
 	$(Q) $(CC) $(CFLAGS) $(DEFINES) -c $< -o $@