[OE-core] Mesa mess

[Andreas Müller]

On Thu, Oct 24, 2013 at 9:43 AM, Andreas Müller
<schnitzeltony at googlemail.com> wrote:
> 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
I added PREFERRED_PROVIDER for all virtual/libgl* and virtual/mesa in
machine config and am fine now.

Andreas