On May 10, 2014, at 3:31 PM, pet...@technux.se wrote:
> 2014-05-10 18:58 skrev Khem Raj:
>
>> On Sat, May 10, 2014 at 1:05 AM, Petter Mabäcker <pet...@technux.se>
>> wrote:
>>
>>> +FILESEXTRAPATHS_prepend := "${THISDIR}/systemtap:"
>>
>> would something like
>>
>> FILESEXTRAPATHS =. "${FILE_DIRNAME}/systemtap:"
>>
>> avoid the prepend and immediate evaluation
>
> I guess someone with deep bitbake knowledge can answer this better. But as
> far as I understand, you should always use immediate evaluation when using
> THISDIR, to be extra safe. Not sure if it's more safe to use FILE_DIRNAME if
> you want to avoid immediate expanding when using FILESEXTRAPATHS?
>
> The bitbake documentations says:
>
> "The operators "_append" and "_prepend" differ from the operators ".=" and
> "=." in that they are deferred until after parsing completes rather than
> being immediately applied."
>
> Not sure if above means that "=." will also immediately expand variables or
> not?
>
> Personally I have always used FILESEXTRAPATHS_prepend :=
> "${THISDIR}/<somename>:" like the yocto documentation recommends. But sure if
> you can avoid immediate expanding in FILESEXTRPATHS, that would mean a tiny
> optimization. In that case perhaps the documentation should be updated as
> well. Looking in meta-layer both methods seems to be used.I was hinting on avoiding THISDIR but that does not solve the problem probably what you have it ok in this case.
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