[yocto] FILESEXTRAPATHS needs to be explained *way* better

[Gary Thomas]

On 2012-12-06 15:32, Robert P. J. Day wrote:
> On Thu, 6 Dec 2012, Chris Larson wrote:
>
>>
>>
>> On Thu, Dec 6, 2012 at 2:59 PM, Robert P. J. Day <rpjday at crashcourse.ca> wrote:
>>          in addition, there is absolutely no need to add a ":" to the value
>>        as the processing adds that for you, so the many, many examples of
>>
>>        FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
>>
>>        is potentially confusing to folks reading the code.  (that trailing
>>        ":" doesn't hurt, but it has no value.)
>>
>>
>> This is wrong. You only don't need the leading : if FILESEXTRAPATHS
>> was empty to begin with, which is only the case if that is the first
>> and only bbappend adding to it. As soon as you get more than one,
>> you'll end up with concatenated values and no separator.
>
>    i'm confused, not sure what this means.  what is the *proper* usage
> of that variable?

I think Chris means you don't need ":=", you should just use "="

Bottom line, what you are trying to create is something that looks like this:
   FILESEXTRAPATHS = "some_path:some_other_path:even_another_path:"
so the ":" at the end of the expression should always be there.

-- 
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Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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