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    SubjectRe: [PATCH -mm] sys_semctl gcc 4.1 warning fix
        David> IMHO, the tree should build with -Werror without exception.
    David> Once you have that basis, new ones will not show up easily
    David> and the hard part of the battle has been won.

    It's a great goal, but which gcc version and architecture do you
    declare has to build the kernel with -Werror? Every gcc version and
    platform produces a different set of warnings. And what do you do
    when all released versions of gcc produce a false positive warning?

    The problem is that fixing false positive warnings often leads people
    to write unnatural code that may hide future bugs (and in fact may be
    buggy even when written).

    - R.
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