all: build/loesung.pdf

build/loesung.pdf: loesung.tex loesung-header.tex loesung-hello.tex | build
	lualatex --output-directory=build --batchmode --halt-on-error loesung.tex
	lualatex --output-directory=build --batchmode --halt-on-error loesung.tex

build:
	mkdir -p build

clean:
	rm -r build
