[Mesa-maintainers] Recommendations for building Mesa with LIBGLVND support

[Emil Velikov]

On 23 March 2017 at 15:00, Stefan Dirsch <sndirsch at suse.de> wrote:
> On Tue, Mar 21, 2017 at 12:16:48PM -0600, Kyle Brenneman wrote:
>> Ah, I'd forgotten to address libGLES* in my EGL patch.
>>
>> As far as I can tell, the libGLES libraries in Mesa are just dispatch stubs,
>> and nothing within Mesa depends on them. That is, if an application looked
>> up every GLES function using eglGetProcAddress, then you could remove the
>> libGLES*.so libraries entirely and it would still run fine.
>>
>> If that's true, then a libglvnd-based build of Mesa could just skip building
>> the libGLES*.so libraries, because libglvnd basically does look up every
>> GLES function through the vendor library's eglGetProcAddress.
>
> Thanks, Kyle! This explains a lot! I have done this now (removed Mesa's GLES
> libs and reqplaced them with RPM requires to libglvnd's GLES libs; the same as
> Fedora is doing) and it just works. :-)
>
In case you've missed it - I've pulled Kyle's work [with a small bit
of polish] for Mesa 17.1.0-rc1.

Note that there's still loose ends - the biggest one in the GLVND
library itself. I've got some local WIP that I'll try to test and
upstream this week.

-Emil