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  • Forked from Reform / reform-boundary-uboot
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    Stephen Warren authored
    In the following snippet:
    
    if [ ! -x `which $prereq` ]; then
    
    When $prereq does not exist, `which $prereq` evaluates to the empty string,
    which results in *no* argument being passed to the -x operator, which then
    evaluates to true, which is the equivalent of the prereq having been found. In
    order for this to fail as expected, we must pass an empty argument, which then
    causes -x to fail. Do this by wrapping the `` in quotes so there's always an
    argument to -x, even if the value of the argument is zero-length.
    
    Signed-off-by: default avatarStephen Warren <swarren@wwwdotorg.org>
    Reviewed-by: default avatarSimon Glass <sjg@chromium.org>
    Tested-by: default avatarSimon Glass <sjg@chromium.org>
    47b71644
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