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  • Brad King's avatar
    CMP0022: Warn about a given target at most once · 0a561a03
    Brad King authored
    Since cmTarget::ComputeLinkInterface is called separately for each
    "head" target that links a target, the warning we produce when
    CMP0022 is not set could be repeated.  Add explicit logic to allow
    the warning to appear at most once.  Multiple copies of the warning
    for the same target are almost always identical and therefore
    redundant.  In the rare case that two copies of the warning are
    different, the second can appear in a future run after the first
    is fixed.
    0a561a03