Proper use of remove and append

Proper use of remove and append

[Gary Thomas]

I was trying to adjust a PACKAGECONFIG setting in my local.conf,
in this case removing a default value.

This didn't work:
   PACKAGECONFIG_pn-opencv_remove = "libv4l"
but this did:
   PACKAGECONFIG_remove_pn-opencv = "libv4l"

Which is correct (and why)?  The examples in the manual aren't
very helpful with this more complex variable.

What about append?  If I wanted to add a setting to my PACKAGECONFIG
variable, what's the correct way to write that?

Thanks

-- 
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Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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Re: Proper use of remove and append

[Burton, Ross]

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On 22 July 2015 at 13:28, Gary Thomas <gary@mlbassoc.com> wrote:

> This didn't work:
>   PACKAGECONFIG_pn-opencv_remove = "libv4l"
> but this did:
>   PACKAGECONFIG_remove_pn-opencv = "libv4l"
>

Correct.  _append and _remove go first.

Until _remove was added I remembered this by thinking "overrides are
alphabetical", so _append goes first.  That's not the actual rule, but
helped concrete the ordering in my mind!

Ross

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