go:
	set -eu; for dir in $$(find . -maxdepth 1 -name .svn -prune -o -type d -print | egrep '^\./' | sort); do export dir; cd "$$dir"; make; cd ..; done

clean:
	for dir in $$(find . -maxdepth 1 -name .svn -prune -o -type d -print | egrep '^\./' | sort); do export dir; cd "$$dir"; make clean; cd ..; done