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

[Khem Raj]

On 2/26/20 1:16 PM, Greg Wilson-Lindberg wrote:
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.

bitbake -g would give you the dependency graph which you can use to find 
out.

Regards,
Greg

-----Original Message-----
From: Khem Raj <raj.k...@gmail.com>
Sent: Wednesday, February 26, 2020 12:30 PM
To: Greg Wilson-Lindberg <gwil...@sakuraus.com>; Yocto list discussion
<yo...@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








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