prel: prel.l
	flex prel.l
	cc -o prel lex.yy.c -lfl

install: prel
	cp ppdflatex prel brev2s tex2prel /usr/local/bin/
	cd /usr/local/bin/ ; chmod 755 prel ppdflatex  brev2s tex2prel

clean:
	rm -f lex.yy.c prel