[Mesa-dev] [PATCH] Always build shared glapi

[Ian Romanick]

On 07/04/2012 10:28 PM, Homer Hsing wrote:
>> On Sun, Jan 22, 2012 at 9:09 AM, Jon TURNEY<jon.turney at dronecode.org.uk>  wrote:
>>> On 11/01/2012 23:37, Matt Turner wrote:
>>>> No one on IRC knows why an unshared glapi is useful.
>>>
>>>   It looks like this change stops OSMesa from builing on cygwin (See [1])
>>>
>>> I think this is because we never tried building it with shared glapi on cygwin
>>> before, and if we had, we would have noticed that libOSMesa is underlinked,
>>> which is not permitted for PE/COFF shared libraries.
>>>
>>> Patch attached which fixes this by explicitly linking libOSMesa with the
>>> shared glapi library.
>>>
>>> [1] http://tinderbox.freedesktop.org/builds/2012-01-21-0017/logs/libGL/#build
>
>> I'd say commit it. We're planning to overhaul the build system, so if
>> that patch helps now, go for it.
>
> I also wish it to be committed.
>
> Because "disable-shared-glapi" forbids OpenGL ES 2.
>
> In detail: If we disable “shared-glapi”, DRI2 backend failed to be
> loaded, then MESA uses GLX backend to provide render surfaces. But GLX
> backend do not support EGL_OPENGL_ES2_BIT. Then user cannot use OpenGL
> ES 2.

FYI, there are patches on the xserver list to enable support for 
GLX_EXT_create_context_es2_profile.

> The patch is a good solution. I vote for it.
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