openwrt/target/linux/image/tgz.mk

   1 $(KDIR)/root.tar.gz:
   2         tar -zcf $@ --owner=root --group=root -C $(KDIR)/root/ .
   3
   4 tgz-install: $(KDIR)/root.tar.gz
   5         $(MAKE) -C $(BOARD) install KERNEL="$(KERNEL)" FS="tgz"
   6
   7 prepare:
   8 compile:
   9 install: tgz-install