[yocto] How to include libraries?

[Gary Thomas]

On 2017-05-24 15:26, Burton, Ross wrote:
> 
> On 24 May 2017 at 13:20, Gary Thomas <gary at mlbassoc.com <mailto:gary at mlbassoc.com>> wrote:
> 
>     I have an image which needs to include the libcups2 package from
>     the cups recipe.  If I try adding this to my image recipe
>        CORE_IMAGE_EXTRA_INSTALL_append = " libcups2"
>     I get this error:
>        ERROR: Required build target 'my-demo-image' has no buildable providers.
>        Missing or unbuildable dependency chain was: ['my-demo-image', 'libcups2']
> 
>     However, I can get it to build with this
>        MACHINE_EXTRA_RRECOMMENDS_append = " libcups2"
> 
>     What's the difference between these two approaches and why doesn't the first
>     one work at all?
> 
> 
> Does the latter actually work?  Recommends won't fail if the package doesn't exist, or is getting pulled in via another 
> route.
> 
> I've a feeling that you actually want the pre-renaming name here so try cups-lib.

Thanks, I'm rebuilding the image (after a Poky/master pull) and will let you know.

BTW, that would be awfully confusing to require cups-lib when building but my package
manager (opkg) only knows about the [renamed] package libcups2.

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