On 2011年11月23日 15:31, Koen Kooi wrote: 
Op 23 nov. 2011, om 07:47 heeft Xiaofeng Yan het volgende geschreven:


From: Xiaofeng Yan <xiaofeng.yan@windriver.com>

Hi Richard & all,

I fixed some problems found at previous submitting and use PACKAGECONFIG to get mutual configuration between directfb and x11. I hope this submitting isn't a horrible mess :).

One previous problem about what happen when user want to have both directfb and x11 in DISTRO_FEATURES?

That was the question I was going to ask


I think directfb and x11 can't be defined in DISTRO_FEATURES at the same time because directfb and x11 are the lowest level library for GUI with different mechanism.

I don't understand what the above means, but I've been building both directfb and x11 for some years now and they don't clash.
Hi koen,

Thanks for your comment.
I want to build an image only including directfb and gtk without x11. There are no any stuff related to x11 in this image. You know, directfb often is used in many embedded device because directfb is enough for their requirement. Perhaps they feel more familiar with directfb or gtk+ rather than x11. The purpose of building this image is for some people who  want to use yocto to develop their production getting  an image based on directfb anf gtk+ very easily.  So it need an mechanism making an mutual operation between directfb and x11 when compiling core-image-gtk-directfb for getting directfb image without x11. Of course, you can add directfb to DISTRO_FEATURES with x11, if you want to have both of them. But if you want to get an image without x11, then I think you can only remove x11 from DISTRO_FEATURES at current status because x11 is the default configuration.

      

        
x11 and directfb should be mutual in DISTRO_FEATURES. User may use file "meta-yocto/conf/local.conf.sample.extended" to select the mode they want to need.
but directfb can work in an image with x11. for example, "directfb" and "direcrfb-examples" can be added to task-core-x11-sato.bb. you can run df_andi, a demo based on directfb, on matchbox term running on core-image-sato with x11. So directfb and x11 can exist in the same image but not be defined in DISTRO_FEATURES at same time.

If you have any suggestion, I will fix them again.


      

      
Last time I looked both gtk+ and pango had their backend modularized, so you can build both and install the right one in the rootfs. I think that would be a better way to go. Just look at debian with their gtk-directfb installer, they have gtk-X as well :)



    

    I know what you mean. It could be a good method to have both in an
    image. It may become a new task after completing  this feature.

    

    Thanks

    Yan

    

      
regards,

Koen

      

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