> Unlike RHEL_RELEASE_CODE, there is no such UBUNTU_RELEASE_CODE available out > of > the box, so it needs to be crafted from the Makefile > Similarly, UBUNTU_KERNEL_CODE is generated with ABI and upload numbers.
It's quite amazing to see that Linux distributions do backports and do not provide a way to check them. Anyway, thanks for the fix. > +ifeq ($(shell type lsb_release >/dev/null 2>&1 && lsb_release -si),Ubuntu) Why not this simpler form? $(shell lsb_release -si 2>/dev/null) > +MODULE_CFLAGS += -DUBUNTU_RELEASE_CODE=$(subst .,,$(shell lsb_release -sr)) Or you can use | tr -d . instead of subst and keep the flow from left to right. > +UBUNTU_KERNEL_CODE := $(shell cut -d' ' -f2 /proc/version_signature |cut -d- > -f1,2) ^ space missing here > +UBUNTU_KERNEL_CODE := $(subst -,$(comma),$(UBUNTU_KERNEL_CODE)) > +UBUNTU_KERNEL_CODE := $(subst .,$(comma),$(UBUNTU_KERNEL_CODE)) Would be simpler with | tr -d .- -- Thomas