ORG_FILES := $(filter-out header.org,$(wildcard *.org))
HTML_FILES := $(patsubst %.org,%.html,$(ORG_FILES))

.PHONY: all clean

all: $(HTML_FILES)

%.html: %.org
	emacs --batch $< --eval "(org-html-export-to-html)"

clean:
	rm -f $(HTML_FILES)