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From: Gerd Knorr <kraxel@bytesex.org>
Newsgroups: lists.linux.kernel
Subject: Re: no version magic, tainting kernel.
Date: 27 Jan 2003 20:54:41 +0100
Organization: SuSE Labs, Berlin
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Jerry Cooperstein <coop@axian.com> writes:

> is fine, but you have to have a Makefile in the current directory,
> and that Makefile needs a somewhat different form for 2.4 and
> 2.5 kernels.

It is no problem to use the same Makefile for both 2.4.x and 2.5.x,
and even let the Makefile do the RightThing[tm] in case the user just
types 'make'.  My Makefiles for kernel stuff look like this (stripped
down a bit):

==============================[ cut here ]==============================

ifneq ($(KERNELRELEASE),)
# call from kernel build system

obj-m	:= btaudio.o

-include $(TOPDIR)/Rules.make

else

KDIR	:= /lib/modules/$(shell uname -r)/build
PWD	:= $(shell pwd)

default:
	$(MAKE) -C $(KDIR) SUBDIRS=$(PWD) modules

endif

==============================[ cut here ]==============================

If you need different stuff for 2.4.x and 2.5.x you can handle it
using ifeq ($(VERSION).$(PATCHLEVEL),2.4)

  Gerd
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