UNAME = $(shell uname)


BIBTEX ?=bibtex
VIEWER ?=xpdf
# acroread may be a better choice as a viewer

# Uncommment MAKEINDEX definition if you are putting an index in your document
# MAKEINDEX=makeindex

# LATEX may be set to pdflatex or to latex
#	Here, I default to pdflatex on Max OS X, but latex otherwise.
ifeq (${UNAME},Darwin)
LATEX ?= pdflatex
else
LATEX ?=latex
endif

# If using latex rather than pdflatex, need conversion programs
#	through dvi and postscript:
DVIPS ?=dvips
PS2PDF ?=distill
# Three choices for PS2PDF:
#	distill	(run on ${DISTILL_HOST} if not available on this machine)
#	ps2pdf
#	pstill

DISTILL_HOST ?= sundance

# Generally 
#	LATEX=latex PS2PDF=distill produces the smallest .pdf files
#		and accepts the most graphics types, but is slow to run.
#	LATEX=pdflatex is the quickest to run
#	LATEX=latex PS2PDF=ps2pdf  produces larger files then pdflatex,
#		but can handle more graphics file types
#	LATEX=latex PS2PDF=pstill  produces the largest pdf files


ifeq (${LATEX},pdflatex)
# construction using pdflatex
%.pdf: %.tex
	${LATEX} $<
ifdef BIBTEX
	${BIBTEX} $(<:.tex=)
	${LATEX} $<
endif
ifdef $(MAKEINDEX)
	$(MAKEINDEX) $<
	${LATEX} $<
endif
	${LATEX} $<

else
ifeq (${LATEX},latex)
# construction using latex, dvips, and either ps2pdf or distill

%.dvi: %.tex
	-${LATEX} $<
ifdef BIBTEX
	${BIBTEX} $(<:.tex=)
	${LATEX} $<
endif
	-${LATEX} $<

%.ps: %.dvi	
	dvips $* -D 600 -tletter -Ppdf -o $@


DISTILL_PARAM = -colorres 600 -grayres 600 -monores 600

ifeq (${PS2PDF},distill)

ifneq ($(wildcard /usr/local/bin/distill*),)
$(warning Using distiller at $(wildcard /usr/local/bin/distill*))

%.pdf:	%.ps
	distill ${DISTILL_PARAM} $^
else
$(warning No distill, trying ssh to ${DISTILL_HOST})
HERE := $(shell pwd)
%.pdf:	%.ps
	ssh -nTxv  ${DISTILL_HOST} 'cd ${HERE}; distill ${DISTILL_PARAM} $^'
endif

else
ifeq (${PS2PDF},pstill)
PSTILL_PATH ?= /usr/local/pstill_dist
ifeq ($(wildcard ${PSTILL_PATH}*),)
PSTILL_PATH:= ${PCPR}/pstill_dist
endif
$(warning Using ${PSTILL_PATH}/pstill)

%.pdf:	%.ps
	set PSTILL_PATH=${PSTILL_PATH} ; ${PSTILL_PATH}/pstill -gip -o $@ $^
%.pdf:	%.eps
	set PSTILL_PATH=${PSTILL_PATH} ; ${PSTILL_PATH}/pstill -gip -o $@ $^
else
$(warning Using ${PS2PDF})
%.pdf:	%.ps
	${PS2PDF} $< $@

endif
endif
endif
endif


clean:
	-rm -f *.aux *.log *.blg *.bbl *~

%.eps: %.gnuplot
	echo "set terminal postscript eps color" \
	| cat - $< \
	| gnuplot \
	>$@

%.pdf: %.gnuplot
	echo "set terminal pdf color" \
	| cat - $< \
	| gnuplot \
	>$@

ifeq (${UNAME},Darwin)
# NOTE: Mac OS X does not have "convert" installed to generate png
#	from pdf

# This PNG generation technique is specific to Mac OS X:
%.png: %.pdf
	qlmanage -t -s 1000 -o . $^
	mv $^.png $@
else
%.png: %.pdf
	convert -sample 600 $< $@
%.pdf: %.eps
	convert $< $@
%.eps: %.jpg
	convert -sample 1200 $< $@
endif