make a mole hill out of 1991/ant

1991/ant/.gitignore

@@ -1,4 +1,5 @@
 ant
-hill
 ant.orig
+hill
+mole
 prog.orig

1991/ant/Makefile

@@ -113,8 +113,8 @@ ENTRY= ant
 PROG= ${ENTRY}
 #
 OBJ= ${PROG}.o
-DATA=
-TARGET= ${PROG}
+DATA= README.md
+TARGET= ${PROG} hill mole
 #
 ALT_OBJ=
 ALT_TARGET=
@@ -132,9 +132,17 @@ all: data ${TARGET}
 	clean clobber install love haste waste maker easter_egg \
 	sandwich supernova deep_magic magic charon pluto
 
-${PROG}: ${PROG}.c
+${PROG}: ${PROG}.c hill
 	${CC} ${CFLAGS} $< -o $@ ${LDFLAGS}
 
+hill: README.md
+	${RM} -f $@
+	${CP} -f -v $? $@
+
+mole: ${PROG}.c hill
+	${RM} -f $@
+	${CAT} ${PROG}.c hill > $@
+
 # alternative executable
 #
 alt: data ${ALT_TARGET}

1991/ant/README.md

@@ -27,10 +27,15 @@ program exit without doing anything.
 ### Try:
 
 ```sh
-cp README.md hill
+make hill
 ./ant hill
 ```
 
+```sh
+make mole
+./ant mole
+```
+
 
 ## Judges' remarks: