[yocto] Yocto and Google protobuffer

[Maciej Borzęcki]

On Wed, Aug 31, 2016 at 6:44 PM, Pietro <pulsarpietro at posteo.net> wrote:
> Hi all,
>
> I am new to the Yocto building system and I could be talking nonsense. I
> used to work with buildroot time ago and I remember there is an area
> where compiled software/packages/tools previously built are "staged" and
> used when building other packages.
>
> Is there something like that available with Yocto ? Specifically I would
> like to add a package which uses the Google Protocol Buffer, I do not have
> administrator rights on the machine and I can't install the packages I
> need system wise.
>
> Is it possible to add recipes and use them at building time without
> including them in the image being generated ?
>
> A good example for that would be the protoc, the protocol buffer description
> file compiler.
>

There is a recipe for protobuf in meta-oe (2.6.1). All you need to do,
is include meta-oe in your layers (bblayers.conf) and have
protobuf-native listed in DEPENDS inside your package recipe.

The protoc compiler will be available in the PATH when package is
being built, so autotools checks like AC_CHECK_PROG/AC_PATH_PROG
should be able to find it.

Cheers,
-- 
Maciej Borzecki
RnDity