BRVER=2018.05.1
BRDIR=buildroot-$(BRVER)

all: $(BRDIR)/output/images/rootfs.cpio.uboot

buildroot-$(BRVER).tar.gz:
	wget https://buildroot.org/downloads/buildroot-$(BRVER).tar.gz

$(BRDIR)/Makefile: buildroot-$(BRVER).tar.gz
	tar -xf buildroot-$(BRVER).tar.gz
	touch $@

$(BRDIR)/.config: $(BRDIR)/Makefile
	$(MAKE) BR2_EXTERNAL='../br2external_mos' -C $(BRDIR) mos_defconfig

$(BRDIR)/output/images/rootfs.cpio.uboot: $(BRDIR)/.config
	$(MAKE) -C $(BRDIR)


