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Makefile: determine kernel release in Makefile 

Don't assume we are building for the current kernel. In addition print out
a proper package necessary for building the module.

Signed-off-by: Chris J Arges <chris.j.arges@canonical.com>
This commit is contained in:
Chris J Arges 2016-02-08 10:46:06 -06:00
parent 06ad01b784
commit 3c8f5f7bfa
1 changed files with 2 additions and 1 deletions
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3
kmod/core/Makefile
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@ -1,9 +1,10 @@
# make rules
KPATCH_BUILD ?= /lib/modules/$(shell uname -r)/build
KERNELRELEASE := $(lastword $(subst /, , $(dir $(KPATCH_BUILD))))
THISDIR := $(abspath $(dir $(lastword $(MAKEFILE_LIST))))
ifeq ($(wildcard $(KPATCH_BUILD)),)
$(error $(KPATCH_BUILD) doesn\'t exist. Try installing the kernel-devel-$(shell uname -r) RPM or linux-image-$(shell uname -r)-dbg DEB.)
$(error $(KPATCH_BUILD) doesn\'t exist. Try installing the kernel-devel-$(KERNELRELEASE) RPM or linux-headers-$(KERNELRELEASE) DEB.)
endif
KPATCH_MAKE = $(MAKE) -C $(KPATCH_BUILD) M=$(THISDIR)