LATEX:=pdflatex
SHELL:=/bin/bash

DOCUMENT:=ar
PROBLEMS:=1 2 3 4

SOURCES:=$(DOCUMENT).tex $(addsuffix .tex,$(PROBLEMS))
SOLUTIONS:=$(addprefix a,$(addsuffix .tex,$(PROBLEMS)))

.SECONDARY: $(DOCUMENT).fmt $(SOLUTIONS)

all: $(DOCUMENT).pdf

%.pdf: %.tex %.fmt $(SOURCES) $(SOLUTIONS)
	$(LATEX) $<
	$(LATEX) $<

%.fmt: pre.tex
	$(LATEX) -ini -jobname="$(basename $@)" "&$(LATEX) $<\dump"

a%.tex: src/a%.bash src src/a%.py
	$(SHELL) $< $@

clean:
	$(RM) -v $(DOCUMENT).{fmt,aux,log,out,toc,pdf} $(SOLUTIONS)