Re: [yocto] Help with how to debug dependency error

["Greg Wilson-Lindberg" <gwilson@sakuraus.com>]

Hi Khem,

Thanks for the (possible) solution. What I was really looking for is some way of
finding out what changed with the addition of the OSTree directories that then caused the 
need for the additional libraries. Are there some tools that I don't know about that 
will help me find what is causing the gbm & gles2 to now be included when they are not 
necessary without the OSTree dirs. 

Regards,
Greg

> -----Original Message-----
> From: Khem Raj <raj.khem@gmail.com>
> Sent: Wednesday, February 26, 2020 12:30 PM
> To: Greg Wilson-Lindberg <GWilson@sakuraus.com>; Yocto list discussion
> <yocto@yoctoproject.org>
> Subject: Re: [yocto] Help with how to debug dependency error
> 
> 
> 
> On 2/26/20 12:02 PM, Greg Wilson-Lindberg wrote:
> > I am building a system based on a boot2qt warrior Yocto build  for the
> Raspberry Pi4.
> >
> > Our system is building just fine until I try to add support for OSTree. When I
> do that I get 3 errors for existing recipes, "nothing provides virtual/gbm",
> "nothing provides virtual/egl", and "nothing provides virtual/gles2". All of
> these are specified in PACKAGECONFIG[] lines in qtbase_git.bb as required
> when gbm and gles2 are turned on.
> >
> > I have searched for gbm in the meta-updater & meta-updater-raspberrypi
> directories that get included to add support for OSTree and found no
> reference. It looks like the OSTree inclusion is requesting something that is in
> turn requesting gbm and gles2 but I haven't been able to figure out what that
> is.
> >
> > I have tried to print out the variables and a dependency graph to help me
> track down what is going wrong, but these don't work because the errors
> abort before I can get the information I need out.
> >
> > Can anyone point me to a way to find out what is triggering the change in
> the gbm & gles2 packages?
> >
> 
> this is meta-rpi issue, perhaps you can use mesa there instead of userland
> graphics driver
> 
> MACHINE_FEATURES_append_rpi = " vc4graphics"
> 
> 
> 
> > Thanks in advance,
> > Greg Wilson-Lindberg
> >
> >
> >
> >
> > 
> >