#
# Makefile designed for use with ctangle, cweave, gcc, and plain TeX.
#
# Copyright (C) 2004, Fredrik Jonsson <jonsson@uni-wuppertal.de>
#
# The CTANGLE program converts a CWEB source document into a C program that
# may be compiled in the usual way. The output file includes #line specifica-
# tions so that debugging can be done in terms of the CWEB source file.
#
# The CWEAVE program converts the same CWEB file into a TeX file that may be
# formatted and printed in the usual way. It takes appropriate care of typo-
# graphic details like page layout and the use of indentation, italics,
# boldface, etc., and it supplies extensive cross-index information that it
# gathers automatically.
#
# CWEB allows you to prepare a single document containing all the information
# that is needed both to produce a compilable C program and to produce a well-
# formatted document describing the program in as much detail as the writer
# may desire.  The user of CWEB ought to be familiar with TeX as well as C.
#
CTANGLE  = ctangle
CC       = gcc
CCOPTS   = -O2 -Wall -ansi -pedantic
LNOPTS   = -lm
CWEAVE   = cweave
TEX      = tex
DVIPS    = dvips
DVIPSOPT = -ta4 -D1200
METAPOST = mp
FIGDIRS  = matfig pagelayt pixbb examples

all: epsimg.exe figures examples epsimg.ps

epsimg.exe: epsimg.o # generate the executable file
	$(CC) $(CCOPTS) -o epsimg epsimg.o $(LNOPTS)

epsimg.o: epsimg.c # generate the object file
	$(CC) $(CCOPTS) -c epsimg.c

epsimg.c: epsimg.w # generate C code from the CWEB source
	$(CTANGLE) epsimg

epsimg.ps: epsimg.dvi # generate the PostScript documentation
	$(DVIPS) $(DVIPSOPT) epsimg.dvi -o epsimg.ps

epsimg.dvi: epsimg.tex # generate the device-independent documentation
	$(TEX) epsimg.tex

epsimg.tex: epsimg.w # generate plain TeX code from the CWEB source
	$(CWEAVE) epsimg

figures:
	for k in $(FIGDIRS); do make -ik -C $$k/; done

clean:
	-rm -Rf *~ *.o epsimg *.exe *.aux *.log *.toc *.idx \
	*.tex *.c *.scn *.dvi *.ps *.pdf *.dat
	for k in $(FIGDIRS); do make clean -ik -C $$k/; done