# Makefile for the WEB programs.
# tangle is bootstrapped from the supplied C source.

SHELL = /bin/sh
srcdir = @srcdir@
VPATH = @srcdir@

# This is so kpathsea will get remade automatically if you change
# something in it and recompile from the package directory.
kpathsea_parent = ../..
kpathsea_dir = $(kpathsea_parent)/kpathsea
kpathsea = $(kpathsea_dir)/kpathsea.a

# Routines used everywhere.
commondefines = $(srcdir)/../lib/common.defines
commonh = $(srcdir)/../lib/config.h $(kpathsea_dir)/paths.h
commono = ../lib/lib.a $(kpathsea)

program = tangle weave pooltype

CC = @CC@
CFLAGS =
CPPFLAGS = -I../lib -I$(srcdir)/../lib -I../.. -I$(srcdir)/../..

CCLD = $(CC)
LDFLAGS = $(CFLAGS) $(XLDFLAGS)
LIBS = @LIBS@ $(extralibs)
libs = $(commono) $(LIBS)

INSTALL = @INSTALL@
INSTALL_PROGRAM = @INSTALL_PROGRAM@


.SUFFIXES:
.SUFFIXES: .o .c .p .ch
.p.c:
	$(SHELL) $(srcdir)/../lib/convert $< $*.c $(srcdir)
.ch.p:
	./tangle $(srcdir)/$*.web $<
	cp $(srcdir)/$*.p $*.p
	rm -f $(srcdir)/$*.p
.c.o:
	$(CC) $(CPPFLAGS) $(CFLAGS) -c $<


default: $(all)
all: $(program)
triptrap: tangle


tangleboot: tangleboot.o $(commono)
	$(CCLD) -o tangleboot $(LDFLAGS) tangleboot.o $(libs)

tangleboot.o: tangleboot.c tangleboot.h

tangleboot.c tangleboot.h: tangleboot.p
	cd ../web2c; $(MAKE) all
	$(SHELL) $(srcdir)/../lib/convert tangleboot.p temp.c $(srcdir)
	sed s/tangle.h/tangleboot.h/ < temp.c > tangleboot.c
	rm -f temp.c

# To make tangleboot.p, we must assume a working tangle.
tangleboot.p: tangle.web tangle.ch
	tangle $(srcdir)/tangle.web $(srcdir)/tangle.ch
	mv tangle.p tangleboot.p


tangle: tangle.o $(commono)
	$(CCLD) -o tangle $(LDFLAGS) tangle.o $(libs)
tangle.o: tangle.c $(commonh)
tangle.c: tangle.p $(commondefines)

# Making tangle.p is a special case, since it is needed to compile
# itself.  We compile the (distributed) tangleboot.c to make a tangle
# which we can use to make the other programs.  (We don't bother to make
# tangle again using itself.)
tangle.p: tangleboot tangle.web tangle.ch
	./tangleboot $(srcdir)/tangle.web $(srcdir)/tangle.ch
	cp $(srcdir)/tangle.p tangle.p
	rm -f $(srcdir)/tangle.p

tangle.web:
	@echo "You seem to be missing tangle.web, perhaps because you"
	@echo "only retrieved web2c.tar.gz, and not web.tar.gz."
	@echo "You need both."
	@echo
	@echo "web.tar.gz should be available from the"
	@echo "same place that you got web2c.tar.gz."
	@echo "In any case, you can get it from ftp.cs.umb.edu:pub/tex."
	exit 1

pooltype: pooltype.o $(commono)
	$(CCLD) -o pooltype $(LDFLAGS) pooltype.o $(libs)
pooltype.o: pooltype.c $(commonh)
pooltype.c: pooltype.p $(commondefines)
pooltype.p: pooltype.web pooltype.ch


weave: weave.o $(commono)
	$(CCLD) -o weave $(LDFLAGS) weave.o $(libs)
weave.o: weave.c $(commonh)
weave.c: weave.p $(commondefines)
weave.p: weave.web weave.ch


Makefile: Makefile.in ../config.status
	(cd ..; sh config.status)

c-sources: pooltype.c tangle.c weave.c
.PHONY: c-sources

install install-exec: all
	for p in $(program); do $(INSTALL_PROGRAM) $$p $(bindir)/$$p; done
install-data:

TAGS: *.c *.h
	etags -t *.c *.h


mostlyclean::
	rm -f *.o $(program) $(lib) $(programs)

clean:: mostlyclean
	rm -f *.dvi *.pool

distclean:: clean
	rm -f Makefile config.status c-auto.h

# Although we can remake configure and c-auto.h.in, we don't remove
# them, since many people may lack Autoconf.  Use configclean for that.
realclean:: distclean
	rm -f TAGS *.info*

extraclean::
	rm -f *.aux *.bak *.bbl *.blg *.dvi *.log *.orig *.pl *.rej
	rm -f *.i *.s *.tfm *.vf *.vpl *\#* *gf *pk *~
	rm -f CONTENTS.tex a.out core mfput.* patch* texput.*

configclean:
	rm -f configure c-auto.h.in c-auto.h


# Prevent GNU make 3 from overflowing arg limit on system V.
.NOEXPORT:

mostlyclean::
	rm -f tangleboot

# Can't remove *.p *.c *.h because of tangleboot.
clean::
	rm -f pooltype.p pooltype.c pooltype.h
	rm -f tangle.p tangle.c tangle.h
	rm -f weave.p weave.c weave.h

# Do not remove tangleboot.[chp] at realclean, even though there are
# targets for them in this Makefile, because we need a working tangle to
# use them, and we might not have one.
