#FILES = $(shell find -name "*.bin" -or -name "*.dsk" -or -name "*.img" -or -name "*.iso")
FILES = bootchess.img  freedos722.img  linux3.iso  os8.dsk    windows101.img\
	DexOSv6.iso    kolibri.img     linux.iso   openbsd.img oberon-boot.dsk oberon.dsk

GZ_FILES = $(FILES:=.gz)

all: ${GZ_FILES}

%.gz: %
	#gzip -k -f -9 $<
	zopfli $<


clean:
	rm -f *.gz