$(WORK)/linux-$(KERNEL_VERSION): $(TOPDIR)/config-$(KERNEL_VERSION) $(WORK)/linux-$(KERNEL_VERSION).tar.bz2
tar -C $(WORK) -xvjf $(WORK)/linux-$(KERNEL_VERSION).tar.bz2
$(WORK)/linux-$(KERNEL_VERSION): $(TOPDIR)/config-$(KERNEL_VERSION) $(WORK)/linux-$(KERNEL_VERSION).tar.bz2
tar -C $(WORK) -xvjf $(WORK)/linux-$(KERNEL_VERSION).tar.bz2