CROSS_COMPILE	?= arm-none-eabi-
build_dir       := $(CURDIR)/build-bcm6846
fw_tools_dir	:= /mnt/storage/linus/openwrt/staging_dir/host/bin
#output_dir	:= $(HOME)
output_dir	:= /mnt/storage/nfsroot/bcm6846


.PHONY: have-crosscompiler
have-crosscompiler:
	@echo -n "Check that $(CROSS_COMPILE)gcc is available..."
	@which $(CROSS_COMPILE)gcc > /dev/null ; \
	if [ ! $$? -eq 0 ] ; then \
	   echo "ERROR: cross-compiler $(CROSS_COMPILE)gcc not in PATH=$$PATH!" ; \
	   echo "ABORTING." ; \
	   exit 1 ; \
	else \
	   echo "OK" ;\
	fi

menuconfig: FORCE
	$(MAKE) O=$(build_dir) CROSS_COMPILE=$(CROSS_COMPILE) menuconfig

config: FORCE
	rm -rf $(build_dir)
	@mkdir -p $(build_dir)
	# $(MAKE) O=$(build_dir) CROSS_COMPILE=$(CROSS_COMPILE) distclean
	$(MAKE) O=$(build_dir) CROSS_COMPILE=$(CROSS_COMPILE) bcm96846_defconfig

build: have-crosscompiler FORCE
	$(MAKE) O=$(build_dir) CROSS_COMPILE=$(CROSS_COMPILE)
	$(fw_tools_dir)/lzma e -lc1 -lp2 -pb2 -d22 $(build_dir)/u-boot.bin $(output_dir)/u-boot.lz
	$(HOME)/bin/bcm4908kernel -i $(output_dir)/u-boot.lz -o $(output_dir)/u-boot.kern
	rm $(output_dir)/u-boot.lz

clean:
	$(MAKE) O=$(build_dir) clean
	rm -rf $(build_dir)

# Rules without commands or prerequisites that do not match a file name
# are considered to always change when make runs. This means that any rule
# that depends on FORCE will always be remade also.
FORCE: