#####################################################################
### 
### Makefile for Singular documentation 
###
#####################################################################
SHELL=/bin/sh

####################################################################
##
## Configuration
##

## directory where info files are installed
prefix		= @prefix@
infodir		= ${prefix}/info
bindir		= @bindir@
htmldir         = ${prefix}/html

##
## needed programs
##
@SET_MAKE@
CC		= @CC@
INSTALL		= ../install-sh -c
INSTALL_PROGRAM	= ${INSTALL}
INSTALL_DATA	= ${INSTALL} -m 644
MKINSTALLDIRS   = ../mkinstalldirs

PERL5		= @PERL5@
TEX		= tex
MAKEINFO	= @MAKEINFO@
TEXI2DVI	= @TEXI2DVI@
TEXINDEX	= @TEXINDEX@
TEXI2HTML	= @TEXI2HTML@
DVIPS		= dvips
IMAGES_UU	:= $(wildcard images/*.uu)

# d2t stuff
SINGULAR	= @SINGULAR@
LIBPARSE	= ${bindir}/libparse
D2T_SUBDIR      = ./d2t_singular
DOC2TEX		= ./doc2tex.pl -subdir ${D2T_SUBDIR} -Singular ${SINGULAR} \
			-libparse ${LIBPARSE} -I ../Singular/LIB 
TMP_DIR		= @TMP_DIR@
TEXI2HTML_OPTS  = @TEXI2HTML_OPTS@ -l2h_tmp ${TMP_DIR} 
##
## End configuration dependend stuff
#################################################################

# files
TEX_FILES	= copyright.tex
DOC2TEX_FILES	= \
		examples.tex general.tex math.tex reference.tex \
		start.tex types.tex pdata.tex tricks.tex

MANUAL_FILES	= ${TEX_FILES} ${DOC2TEX_FILES}
TUTOR_FILES	= \
		tutor.tex examples.tex start.tex copyright.tex

IMAGES     := $(IMAGES_UU:images/%.uu=%)
IMAGES_SRC := $(IMAGES:%=images/%)
IMAGES_HTML := $(IMAGES:%=html/%)
IMAGES_TUTOR :=  $(IMAGES:%=html_tutor/%)

# prepend bindir to path so that programs from there are taken first
export PATH := "${bindir}:${PATH}"

.PHONY: info dvi ps 
# default target
all: info dvi html

# info stuff
info: singular.hlp 

singular.hlp: ${MANUAL_FILES} singular.tex
	- ${MAKEINFO} --no-split singular.tex

# dvi stuff
dvi: manual.dvi usercard.dvi

singular.dvi: ${MANUAL_FILES} singular.tex 
	${TEXI2DVI} singular.tex 

manual.dvi: ${MANUAL_FILES} manual.tex
	${TEXI2DVI} manual.tex

tutor.dvi: ${TUTOR_FILES} 
	${TEXI2DVI} tutor.tex

usercard.dvi: usercard.tex singcard.tex
	${TEX} $<

# postscript stuff
ps: singular.ps usercard.ps

usercard.ps: usercard.dvi
	${DVIPS} -t landscape -t a4 $< -o $@

%.ps: %.dvi
	${DVIPS} $< -o $@

# html stuff
html: html/index.htm ${IMAGES_HTML}
html/index.htm: t2h_singular.init t2h.init singular.tex singular.hlp ${TEXI2HTML}
	${PERL5} ${TEXI2HTML} -init_file t2h_singular.init ${TEXI2HTML_OPTS} -subdir html singular.tex

# html stuff
html_tutor: ${TUTOR_FILES} ${IMAGES_TUTOR}
	test -d html_tutor || mkdir html_tutor
	cd html_tutor && ${PERL5} ${TEXI2HTML} ${TEXI2HTML_OPTS} ../tutor.tex
	test -d html || mkdir html
	test -d html/images || mkdir html/images
	for img in ${IMAGES}; \
	do \
		echo uudecode images/$${img}.uu; \
		uudecode images/$${img}.uu; \
	done
	test -e html_tutor/images || (cd html_tutor; ln -s ../html/images images)
	touch html_tutor

# how to create the texinfo files
manual.tex:  ${MANUAL_FILES} doc2tex.pl ${SINGULAR} ${LIBPARSE} singular.doc
	${PERL5} ${DOC2TEX} -o manual.tex singular.doc

singular.tex: ${MANUAL_FILES} doc2tex.pl ${SINGULAR} ${LIBPARSE} singular.doc
	${PERL5} ${DOC2TEX} -lib_fun -lib_ex -o singular.tex singular.doc

%.tex: %.doc doc2tex.pl ${SINGULAR} ${LIBPARSE}
	${PERL5} ${DOC2TEX} $*

# targets which produce stand-alone documents
COPYING: copyright.tex
	${MAKEINFO} --no-header -o COPYING copyright.tex 

${IMAGES_HTML} : ${IMAGES_SRC}
	test -d html || mkdir html
	cp ${IMAGES_SRC} html

${IMAGES_TUTOR} : ${IMAGES_SRC}
	test -d html_tutor || mkdir html_tutor
	cp ${IMAGES_SRC} html_tutor

images/%.gif : images/%.gif.uu
	uudecode $< -o $@

images/%.jpg : images/%.jpg.uu
	uudecode $< -o $@

images/%.xbm : images/%.xbm.uu
	uudecode $< -o $@

# targets concerned with maintenance
install: singular.hlp html/index.htm
	${MKINSTALLDIRS} ${infodir}
	${INSTALL_DATA} singular.hlp ${infodir}
	test -L ${htmldir} || (rm -rf ${htmldir}; ln -s `pwd`/html ${htmldir})

uninstall: 
	rm -f ${infodir}/singular.hlp
	- rmdir ${infodir}

clean:
	/bin/rm -f .singular_hist doe.tmp dump.ascii example.mp example.txt
	/bin/rm -f save_i test.ascii test.mp
	/bin/rm -f Z* *.tst *.pag *.dir *.lst *.log *.aux *.cp *.cps
	/bin/rm -f *.fn *.fns *.ky *.kys *.log *.pg *.pgs *.toc *.tp
	/bin/rm -f *.tps *.vr *.vrs
	/bin/rm -f singular.hlp *.dvi *.ps ${DOC2TEX_FILES} 
	/bin/rm -rf singular.tex manual.tex  html ${D2T_SUBDIR}

mostlyclean: clean

distclean: mostlyclean
	/bin/rm -f Makefile

maintainer-clean: distclean

${SINGULAR}:
#	cd ..; ${MAKE} ${SINGULAR}

Makefile: Makefile.in
	cd ..; ${MAKE} doc/Makefile

html-done: ${MANUAL_FILES}