Merge pull request #786 from xexyl/2001-anonymous-try-me-64

Add alt supplementary program to 2001/anonymous

2001/anonymous/.gitignore

@@ -5,3 +5,4 @@ ten.bak.od
 ten.bak.txt
 ten.od
 ten.txt
+anonymous.ten.64

2001/anonymous/Makefile

@@ -117,10 +117,10 @@ PROG= ${ENTRY}
 #
 OBJ= ${PROG}.o
 DATA=
-TARGET= ${PROG} ${PROG}.ten
+TARGET= ${PROG} ${PROG}.ten ${PROG}.ten.64
 #
-ALT_OBJ= 
-ALT_TARGET=
+ALT_OBJ= ${PROG}.ten.64.o
+ALT_TARGET= ${PROG}.ten.64
 
 
 #################
@@ -156,6 +156,11 @@ ${PROG}.ten: ${PROG}.ten.c
 	@echo
 	${CC} ${CFLAGS} -m32 $< -o $@ ${LIBS}
 
+${PROG}.ten.64: ${PROG}.ten.c
+	@echo "WARNING: the file created by this rule will NOT work with the entry itself;"
+	@echo "this is because it works ONLY on 32-bit ELF binaries! This however at least"
+	@echo "lets you see the supplementary program in action."
+	${CC} ${CFLAGS} $< -o $@ ${LIBS}
 
 # alternative executable
 #

2001/anonymous/README.md

@@ -82,6 +82,8 @@ What happens if you try it on another file like [anonymous.c](anonymous.c)? Can
 you recompile it okay? What if you run it on `anonymous` itself? Can you run the
 program successfully after it without recompiling?
 
+NOTE: if the 32-bit version cannot be compiled the script will at least run the
+alternate version of the [anonymous.ten](anonymous.ten.c) program.
 
 ## Judges' remarks:
 

2001/anonymous/try.me.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-make clobber all >/dev/null 2>&1
+make clobber alt all >/dev/null 2>&1
 
 
 TARGET="anonymous.ten"
@@ -27,5 +27,8 @@ if [[ -f "$TARGET" ]]; then
     diff -s ten.txt ten.bak.txt
 else
     echo "cannot compile anonymous.ten.c as 32-bit, sorry."
-    exit 1
+    echo "will run 64-bit version directly."
+    sleep 3
+    echo "$ ./$TARGET.64"
+    ./"$TARGET".64
 fi