svgs=
generated_images= $(svgs:.svg=.png)
images=
images += $(generated_images)

objects= $(generated_images) .image-mtimes.styl style.css tags

all: $(objects)

clean:
	rm -f $(objects)

style.css: styl.styl .image-mtimes.styl
	compile-stylus $<

.image-mtimes.styl: $(images)
	( \
		echo -n 'mtimes = {'; \
		div=' '; \
		for x in $^; do \
			echo -n "$$div '$$x': \"$$x?m=$$(stat -c '%Y' $$x)\""; \
			div=,; \
		done; \
		echo " }"; \
	) > $@ || ( \
		rm -f $@; \
		exit 1; \
	)
%.png: %.svg
	( \
		inkscape -f $< -e $@ --export-area-page --without-gui --export-dpi=360 \
		&& mogrify -alpha off -geometry '25%' $@ \
		&& pngfix $@ \
	) || ( \
		rm -f $@ \
		; exit 1 \
	)

tags: *.php code/*.php inc/wfpl/*.php
	exuberant-ctags *.php code/*.php inc/wfpl/*.php