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    SubjectRe: [patch] u64 casts
    On Fri, Feb 27, 2004 at 05:16:53PM -0500, Albert Cahalan wrote:
    > Supposing that this is the case, you may get warnings.

    It wouldn't be just about warnings if somebody uses current kernel
    headers for /usr/include/linux and /usr/include/asm.
    Think about C++ name mangling, there it matters a lot of
    a type is long long or just long, although they are the same size.

    It is true that (hopefully) most of the distributions use separate
    modified kernel headers and glibc uses only very few kernel headers
    in its headers, but there are certainly many apps in the wild
    who #include <linux/*> or #include <asm/*> and I'm afraid still some
    people use newest kernel headers for userland stuff.

    So if you want to change that, I'd suggest to
    #ifdef __KERNEL__
    typedef unsigned long long __u64;
    typedef unsigned long __u64; /* Provided it has been defined that way before */

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