diff -uNr ../ztelnet/zmodem/Makefile.old ./zmodem/Makefile.old
--- ../ztelnet/zmodem/Makefile.old	Thu Jan  1 00:00:00 1970
+++ ./zmodem/Makefile.old	Wed Dec  3 04:04:23 1997
@@ -0,0 +1,141 @@
+# Makefile for Unix/Xenix rz and sz programs
+# the makefile is not too well tested yet
+CFLAGS= -c
+OBJS=sz.o rz.o
+SRCS= rbsb.c minirb.c zm.c zmr.c crctab.c crc.c zmodem.h
+ARCFILES= README rbsb.c gz *.t minirb.c zmodem.h \
+	zm.c zmr.c crctab.c sz.c rz.c mailer.rz crc.c
+
+nothing:
+	@echo
+	@echo "Please study the #ifdef's in crctab.c, rbsb.c, rz.c and sz.c,"
+	@echo "make any necessary hacks for oddball or merged SYSV/BSD systems,"
+	@echo "then type 'make SYSTEM' where SYSTEM is one of:"
+	@echo
+	@echo "	posix	POSIX compliant systems"
+	@echo "	odt	SCO Open Desktop"
+	@echo "	sysvr4	SYSTEM 5.4 Unix, SCO Open Desktop"
+	@echo "	sysvr3	SYSTEM 5.3 Unix with mkdir(2)"
+	@echo "	sysv	SYSTEM 3/5 Unix"
+	@echo "	xenix	Xenix"
+	@echo "	x386	386 Xenix"
+	@echo "	bsd	Berkeley 4.x BSD, Ultrix, V7"
+	@echo "	tandy	Tandy 6000 Xenix"
+	@echo "	dnix	DIAB Dnix 5.2"
+	@echo "	dnix5r3	DIAB Dnix 5.3"
+	@echo "	amiga	3000UX running SVR4"
+	@echo "	POSIX	POSIX compliant systems (SCO Open Desktop, strict)"
+	@echo
+	@echo "	doc	Format the man pages with nroff"
+	@echo
+
+usenet:doc
+	shar -c -a -n rzsz -o /tmp/rzsz -l64 \
+	  README Makefile zmodem.h zm.c rz.c rbsb.c \
+	 crc.c crctab.c minirb.c mailer.rz zmr.c *.doc gz sz.c *.t 
+
+shar:doc
+	shar -c README Makefile zmodem.h zm.c \
+	 zmr.c sz.c rz.c crctab.c \
+	 mailer.rz crc.c rbsb.c minirb.c *.doc gz *.t >/tmp/rzsz 
+
+unixforum: shar
+	compress /tmp/rzsz.sh
+
+unix:
+	undos $(ARCFILES)
+
+dos:
+	todos $(ARCFILES)
+
+doc:rz.doc sz.doc crc.doc minirb.doc
+
+minirb.doc:minirb.1
+	nroff -man minirb.1 | col  >minirb.doc
+
+rz.doc:rz.1
+	nroff -man rz.1 | col  >rz.doc
+
+sz.doc:sz.1
+	nroff -man sz.1 | col  >sz.doc
+
+crc.doc:crc.1
+	nroff -man crc.1 | col  >crc.doc
+
+zoo: doc
+	-rm -f /tmp/rzsz.zoo
+	zoo ah /tmp/rzsz README Makefile zmodem.h zm.c sz.c rz.c \
+	 mailer.rz crctab.c rbsb.c *.doc \
+	 zmr.c crc.c gz *.t minirb.c
+	touch /tmp/rzsz.zoo
+	chmod og-w /tmp/rzsz.zoo
+	mv /tmp/rzsz.zoo /u/t/yam
+	-rm -f rzsz.zip
+	zip rzsz readme mailer.rz makefile zmodem.h zm.c sz.c rz.c
+	zip rzsz crctab.c rbsb.c *.doc
+	zip rzsz zmr.c crc.c gz *.t minirb.c
+	mv rzsz.zip /u/t/yam
+
+tar:doc
+	tar cvf /tmp/rzsz.tar README Makefile zmodem.h zm.c sz.c rz.c \
+	 mailer.rz crctab.c rbsb.c \
+	 zmr.c crc.c *.1 *.doc gz *.t minirb.c
+
+tags:
+	ctags sz.c rz.c zm.c zmr.c rbsb.c
+
+clean:
+	rm -f *.o
+
+xenix: 
+	$(CC) $(CFLAGS) -M0 -K -i -DUSG -DNFGVMIN -DREADCHECK sz.c
+	$(CC) $(CFLAGS) -M0 -K -i -DUSG -DMD rz.c
+
+x386:
+	$(CC) $(CFLAGS) -DUSG -DMD sz.c 
+	$(CC) $(CFLAGS) -DUSG -DNFGVMIN -DREADCHECK rz.c
+
+sysv:
+	$(CC) $(CFLAGS) -DUSG -DMD sz.c
+	$(CC) $(CFLAGS) -DUSG -DSV -DNFGVMIN rz.c
+
+sysvr3 :
+	$(CC) $(CFLAGS) -DUSG -DMD=2 sz.c
+	$(CC) $(CFLAGS) -DSV -DUSG -DNFGVMIN rz.c
+
+sysvr4 :
+	$(CC) $(CFLAGS) -DUSG -DMD=2 sz.c
+	$(CC) $(CFLAGS) -DSV -DUSG rz.c
+
+odt:
+	$(CC) $(CFLAGS) -strict -W2 -n -DUSG -DMD=2 sz.c
+	$(CC) $(CFLAGS) -strict -W2 -n -DUSG -DREADCHECK rz.c
+
+posix:
+	$(CC) $(CFLAGS) -DPOSIX -DMD=2 sz.c
+	$(CC) $(CFLAGS) -DPOSIX rz.c
+
+POSIX:
+	@echo "Well, stricter, as in *safer sex* ..."
+	$(CC) $(CFLAGS) -posix -W2 -DPOSIX -DMD=2 sz.c
+	$(CC) $(CFLAGS) -posix -W2 -DPOSIX rz.c
+
+bsd:
+	$(CC) $(CFLAGS) -DMD=2 -Dstrchr=index -DV7 sz.c
+	$(CC) $(CFLAGS) -DV7 -DNFGVMIN rz.c
+
+tandy:
+	$(CC) $(CFLAGS) -n -DUSG -DMD -DT6K sz.c
+	$(CC) $(CFLAGS) -n -DUSG -DMD -DT6K rz.c
+
+dnix:
+	$(CC) $(CFLAGS) -DUSG -DMD sz.c
+	$(CC) $(CFLAGS) -DSV -DUSG -DNFGVMIN -DREADCHECK rz.c
+
+dnix5r3:
+	$(CC) $(CFLAGS) -DUSG -DMD=2 sz.c
+	$(CC) $(CFLAGS) -DUSG -DSV -DNFGVMIN -DREADCHECK rz.c
+
+amiga:
+	$(CC) $(CFLAGS) -DUSG -DNFGVMIN -g sz.c
+	$(CC) $(CFLAGS) -DUSG -DSV -DNFGVMIN -g rz.c