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    SubjectRe: RFC: Testing for kernel features in external modules
    On Thu, Jun 24, 2004 at 04:24:01PM -0400, Patrick McFarland wrote:
    > On Thu, 24 Jun 2004 22:30:43 +0200, Sam Ravnborg <> wrote:
    > >
    > > The last couple of kbuild patches has put attention to testing for
    > > features in the kernel so an external modules can stay compatible
    > > with a broad range of kernels.
    > > Since vendors backport patches then testing for the kernel version is not
    > > an option, so other means are reqired.
    > >
    > > Two approaches are in widespread use:
    > > a) grep kernel headers
    > > b) Try to compile a small .c file (nvidia is a good example)
    > Why can't you check the .config file to see if features are enabled?

    Features in a broad sense so API changes with respect to types
    and function calls

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