[OE-core] Mesa mess

[Andreas Müller]

On Thu, Oct 24, 2013 at 2:57 AM, Gary Thomas <gary at mlbassoc.com> wrote:
> On 2013-10-23 11:18, Gary Thomas wrote:
>>
>> On 2013-10-23 11:13, Gary Thomas wrote:
>>>
>>> On 2013-10-23 08:07, Burton, Ross wrote:
>>>>
>>>> On 23 October 2013 14:43, Gary Thomas <gary at mlbassoc.com> wrote:
>>>>>
>>>>> With the current master (Poky ffb440c37c), I can't build anything
>>>>> with a virtual/mesa requirement.  This seems to bring in both mesa
>>>>> and mesa-gl, which fight to the death, killing the build :-(
>>>>
>>>>
>>>> Presumably you want just mesa-gl?
>>>>
>>>> I guess your distro is setting a preferred provider for
>>>> virtual/something to mesa-gl, and something else is pulling in mesa,
>>>> probably through a default.  Can you check that all of the
>>>> mesa-related virtual/* lines are set in your distro, my hunch is that
>>>> you don't have virtual/mesa set to mesa-gl.
>>
>>
>> I also compared all of the PREFERRED_PROVIDERs between my build and a
>> stock
>> poky build and they are identical.
>>
>>>>
>>>> If the distro looks right then try using depexp to see what is pulling
>>>> in mesa when it shouldn't be?
>>>
>>>
>>> I looked through this and nothing was obvious.  According to depmod,
>>> neither
>>> mesa nor mesa-gl have any direct "reverse depends", i.e. packages that
>>> depend
>>> on them.  As far as I can see, it's just coming from the xserver-xorg
>>> dependency
>>> on virtual/mesa.
>>>
>>> Which led me to another experiment which I truly do not understand.  I
>>> removed
>>> the mesa-gl recipe and now when I try to build 'virtual/mesa' I get a
>>> message
>>> that there is no provider :-(  However, I *can* build mesa with no
>>> problems.
>>> I also checked it against the other PROVIDES from mesa.inc and all of
>>> them
>>> except for virtual/mesa work.  How can this possibly be?
>>
>>
>> To be clear, 'bitbake virtual/libgl' (or any of its friends except
>> virtual/mesa)
>> will cause 'mesa' to be built, but 'bitbake virtual/mesa' fails.
>>
>
> I found the cause :-)  In addition to OE-core, I am using meta-ti on an
> OMAP3 target.
> In meta-ti, there is this line:
>   meta-ti/recipes-graphics/mesa/mesa-omap3-common.inc:PROVIDES_omap3 =
> "virtual/libgl"
> I added virtual/mesa to this list and it now builds again.  I'm not sure
> that this is
> 100% correct though.
>
>
I am struggling for the same issue and removed the PROVIDES because
they are not correct any more: for omap3 we need mesa-gl as PROVIDER
for libgl. Same for virtual/mesa.

But still: Seems something is broken with virtual/libgl*. I working on
a bsp-layer [1] and maybe I did something wrong there but building
virtual/libgles2 builds mesa whatever I try...

Andreas

[1] git://gitorious.org/schnitzeltony-oe-meta/meta-toradex-community.git