# ======================================================================
# Makefile for checksum program
#
# Targets:
#	all		make everything
#	checksum	checksum program
#	checksum.tar	checksum program distribution in UNIX tar format
#	checksum.zip	checksum program distribution in Info-Zip format
#	checksum.zoo	checksum program distribution in zoo archive format
#	clean		remove object files and other temporary files
#	clobber		remove all reconstructable files
#	crc.tab		output of polynom
#	install		install checksum in system directory
#	polynom		generator of polynomial coefficients used by
#			checksum
#	test.new	simple test of checksum and its status codes
#	uninstall	remove checksum from system directory
#
# [16-Mar-1993]
# ======================================================================

# These two values may need to be changed for your local conventions
BINDIR        = /usr/local/bin
MANDIR        = /usr/local/man/man1

CC            = cc
CC            = gcc -Wall -Wshadow -Wcast-qual -Wpointer-arith -Wwrite-strings

CHECKSUM      = ./checksum

COMPRESS      = compress

# Use -p (preserve time stamp) where available
CP          = /bin/cp -p

CWEAVE        = cweave

CTANGLE       = ctangle

DETEX         = detex

FTPDIR        = /usr/spool/ftp/pub/misc

# Use -p to preserve time stamps where available;
# HPUX and AT&T System V lack it however
INSTALL       = /bin/cp -p

LN            = /bin/ln

RM            = /bin/rm -f

SEP           = "============================================================"

SHELL         = /bin/sh

SPELL         = spell

STRIP         = strip

TAR           = tar

TARFILES      = Makefile README checksum.c checksum.eok checksum.txt \
		checksum.man checksum.tex checksum.toc checksum.w \
		index polynom.c polynom.eok polynom.tex polynom.toc \
		polynom.w test.org test.new applemac ibmpcdos vaxvms
 
TMP           = tmp

UNZIP         = unzip

VERSION       = `nawk '/^%%% *version * = / \
		{ gsub(/[^0-9.]/,"",$$4); gsub(/\./,"-",$$4); print $$4 }' \
		checksum.w`

ZIP           = zip

ZOO           = zoo

#=======================================================================
# the remaining lines should not need changes

.SUFFIXES: .exc .tex .dvi .w

.tex.exc:
	$(DETEX) $< | $(SPELL) >$@
	- diff $*.eok $@

.w.tex:
	$(CWEAVE) $<

.tex.dvi:
	tex $<

.w.dvi:
	$(CWEAVE) $<
	tex $<

.w.c:
	$(CTANGLE) $<

.w.o:
	$(MAKE) "CC=$(CC)" "CFLAGS=$(CFLAGS)" $*.c
	$(MAKE) "CC=$(CC)" "CFLAGS=$(CFLAGS)" $*.o

#=======================================================================

all:	checksum polynom crc.tab test.new checksum.dvi polynom.dvi

checksum:	checksum.o
	$(CC) $(CFLAGS) -o checksum checksum.o

checksum.txt:	checksum.man
	nroff -man checksum.man | col -b >$@

checksum.tar:	$(TMP)/LASTUPDATE
	cd $(TMP) ; $(TAR) cf ../$@ checksum
	-$(RM) checksum-$(VERSION).tar
	$(LN) $@ checksum-$(VERSION).tar

checksum.tar.z:	checksum.tar
	$(COMPRESS) <$? >$@
	-$(RM) checksum-$(VERSION).tar.z
	$(LN) $@ checksum-$(VERSION).tar.z

checksum.tar-lst:	checksum.tar
	$(TAR) tvf checksum.tar >$@
	-$(RM) checksum-$(VERSION).tar-lst
	$(LN) checksum.tar-lst checksum-$(VERSION).tar-lst

checksum.zip:	$(TMP)/LASTUPDATE
	-$(RM) $@
	cd $(TMP) ; $(ZIP) -r ../$@ checksum
	-$(RM) checksum-$(VERSION).zip
	$(LN) $@ checksum-$(VERSION).zip

checksum.zip-lst:	checksum.zip
	$(UNZIP) -v checksum.zip >$@
	-$(RM) checksum-$(VERSION).zip-lst
	$(LN) $@ checksum-$(VERSION).zip-lst

checksum.zoo:	$(TMP)/LASTUPDATE
	-$(RM) $@
	cd $(TMP) ; \
		$(ZOO) a ../$@ checksum checksum/* checksum/*/* checksum/*/*/*
	-$(RM) checksum-$(VERSION).zoo
	$(LN) $@ checksum-$(VERSION).zoo

checksum.zoo-lst:	checksum.zoo
	$(ZOO) v checksum.zoo >$@
	-$(RM) checksum-$(VERSION).zoo-lst
	$(LN) $@ checksum-$(VERSION).zoo-lst

clean:
	-$(RM) *.dvi
	-$(RM) *.log
	-$(RM) *.dvi-*
	-$(RM) *.exc
	-$(RM) *.o
	-$(RM) *~
	-$(RM) -r $(TMP)
	-$(RM) \#*
	-$(RM) checksum*.tar*
	-$(RM) checksum*.zip*
	-$(RM) checksum*.zoo*
	-$(RM) core

clobber:	clean
	-$(RM) checksum polynom crc.tab

crc.tab:	polynom
	./polynom

install:	checksum
	$(INSTALL) checksum $(BINDIR)/checksum
	$(STRIP) $(BINDIR)/checksum
	chmod 755 $(BINDIR)/checksum
	$(INSTALL) checksum.man $(MANDIR)/checksum.1
	chmod 744 $(MANDIR)/checksum.1

install-ftp:	checksum.tar-lst checksum.tar.z checksum.zip-lst checksum.zoo-lst
	$(CP) checksum-$(VERSION).tar.z $(FTPDIR)
	$(CP) checksum-$(VERSION).tar-lst $(FTPDIR)
	$(CP) checksum-$(VERSION).zip $(FTPDIR)
	$(CP) checksum-$(VERSION).zip-lst $(FTPDIR)
	$(CP) checksum-$(VERSION).zoo $(FTPDIR)
	$(CP) checksum-$(VERSION).zoo-lst $(FTPDIR)

polynom:	polynom.o
	$(CC) $(CFLAGS) -o polynom polynom.o

test.new:	checksum
#	$(CHECKSUM) -c test.org test.new
	$(CHECKSUM) test.org test.new
	@echo $(SEP)
	@echo "The following lines should show the old and new checksums:"
	- diff test.org test.new
	@echo $(SEP)
	@echo "The following test should return a NON-ZERO status code:"
	@if $(CHECKSUM) -v test.org  >/dev/null ;\
	then	echo "	checksum INCORRECTLY returns a zero status code" ;\
	else	echo "	checksum correctly returns a NON-ZERO status code" ;\
	fi
	@echo $(SEP)
	@echo "The following test should return a ZERO status code:"
	@if $(CHECKSUM) -v test.new >/dev/null ;\
	then	echo "	checksum correctly returns a ZERO status code" ;\
	else	echo "	checksum INCORRECTLY returns a non-zero status code" ;\
	fi
	@echo $(SEP)

$(TMP)/LASTUPDATE:	$(TARFILES)
	-$(RM) -r $(TMP)
	-mkdir $(TMP) $(TMP)/checksum $(TMP)/checksum/v$(VERSION)
	$(TAR) cf - $(TARFILES) | (cd $(TMP)/checksum/v$(VERSION); $(TAR) xf -)
	date > $@

uninstall:
	$(RM) $(BINDIR)/checksum
	$(RM) $(MANDIR)/checksum.1