On Thu, May 27, 2004 at 02:15:28PM -0400, Pavel Roskin wrote:
> Hello!
>
> I have fixed a check for the kernel version in the Makefile that would
> assume that any kernel without Rules.make is a 2.6 kernel. Now Makefile
> checks the kernel version instead. This allows building the driver
> against heavily stripped 2.4 kernel trees. In particular, the driver can
> be compiled on KNOPPIX 3.4.
Nice.
> There are some changes on the 2.6 side. It has been some time since the
> build system supports building external modules by setting the "M"
> variable. Using SUBDIRS instead is was a hack and it may break in any
> later version of the kernel. Using "M" is documented and is likely to be
> preserved.
Oh, very nice, I wasn't aware of the M flag. I never like the SUBDIRS
things very much.
> I was able to verify that the kernel shipped with Fedora Core 2 (that's
> patched 2.6.5) allows using the new build system. If you have a kernel
> from 2.5.x to 2.6.4, you won't be able to compile the driver outside the
> tree. In this case it's recommended to upgrade the kernel. The second
> best option is replacing the driver in the kernel source.
>
> I'm sorry for inconvenience, but those kernels didn't provide a way to
> build modules outside the kernel tree. We were doing it through a
> "backdoor". It's more important to ensure that the next standalone
> release won't break with future, more stable 2.6 kernels.
Agreed.
--
David Gibson | For every complex problem there is a
david AT gibson.dropbear.id.au | solution which is simple, neat and
| wrong.
http://www.ozlabs.org/people/dgibson
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