LOC  = it
CC   = pdflatex
SRC != find * -name '*.tex'

gtk4-book-${LOC}.pdf: main-${LOC}.tex ${SRC}
	${CC} main-${LOC}.tex
# For some pacakge/tool we need to execute the command twice
	${CC} main-${LOC}.tex
	@mv main-${LOC}.pdf $@

main-${LOC}.tex: main.tex
	@cp $> $@
	@sed -i "" 's/LOC\//${LOC}\//' $@

clean:
	@rm -f *.log *.aux *.pdf
	@rm -f main-*.tex

english:
	@make LOC=en