[Yocto-builds] Qt5 with linuxfb enabled on cgtqmx6

[Paul Eggleton]

Hi Josh,

On Thursday 15 May 2014 06:48:47 Joshua Collins wrote:
> I would like to build a distribution that has Qt5 (The dora repository for
> meta-qt5 appears to be at version 5.1.1) with linuxfb support enabled.
> Currently I have built a version that has Qt5 but I can only run with EGLFS
> (this is undesirable as we need to be able to specify the specific frame
> buffer so that we can run two applications on different screens. My
> understanding is that this is not possible before Qt5.3 with EGLFS. To
> briefly outline what I have done:
> 
> I have used a script from congatec to checkout out the "meta-fsl-arm-extra",
> "meta-fsl-arm", "base", "meta-fsl-demo", "meta-openembedded" and "poky"
> repositories from the congatec repository. I also checkout out "meta-qt5"
> from https://github.com/meta-qt. I then set up the build directory with
> MACHINE=cgtqmx6. I created a recipe in the "meta-fsl-arm" directory based
> on the recipe described in this mail:
> http://comments.gmane.org/gmane.linux.embedded.yocto.meta-freescale/6129. I
> then built the recipe, which as I stated above, can be run on the board,
> but does not have Qt5 configured correctly.
> 
> I am having trouble understanding how to change the configuration of the Qt
> build. I can see in the "qtbase.inc" file in meta-qt5 that there is a
> variable QT_CONFIG_FLAGS which I think I should be changing. I am getting
> very confused (as I am very new to yocto and these sort of build systems)
> as to how to change this variable though. The file uses the following
> notation:
> 
> PACKAGECONFIG[linuxfb] = "-linuxfb,-no-linuxfb"
> 
> To define different parts of the PACKAGECONFIG variable (I guess), can
> anyone explain to me the [] notation being used here? I assume that I need
> to add some sort of configuration line to either my recipe or my conf file
> to make the build use certain configurations.
> 
> Any pointers would be greatly appreciated.

The yocto-builds list is for our autobuilder to report out build results 
rather than for general discussion / questions. If you could re-post your 
question to the yocto at yoctoproject.org mailing list instead that would be 
great.

Cheers,
Paul

-- 

Paul Eggleton
Intel Open Source Technology Centre