Re: Documentation creation requires Qt offscreen OpenGL rendering. Cannot package distribution!

[PhilipNienhuis]

Mike Miller-4 wrote
> On Mon, Apr 02, 2018 at 11:02:16 -0700, PhilipNienhuis wrote:
>> On my desktop I cannot build a dist target anymore, I get an error
>> message;
>> 
>> "Documentation creation requires Qt offscreen OpenGL rendering.  Cannot
>> package distribution!"
>> 
>> Until Mar 23 I was able to build w/o issue (= date of last mxe-octave
>> cross-build for which I need a dist target).
>> Starting anew with a fresh clone of the repo makes no difference.
>> Intriguingly, on my laptop with exactly the same setup, "make dist" just
>> works. I checked all lib64qt5 libraries and -devel packages between
>> desktop
>> and laptop, they just match AFAICS.
>> 
>> Some details:
>> Mageia-6 Linux 64bit, fully up-to-date
>> Qt 5.6.2
>> NVidia graphics HW with Nouveau driver (laptop has intel graphics)
>> Command sequence:
>> ./path/to/configure --without-osmesa && make -j5 && make dist
>> Trying with just "configure" I get osmesa issues with "pencil' etc.
>> 
>> Where can I look to get this solved?
> 
> Check config.h for HAVE_QT_OFFSCREEN. If that's zero or undefined, that
> explains the error.
> 
> That is tied to the configure message
> 
>   checking whether Qt supports full offscreen OpenGL rendering...
> 
> If you are getting errors from osmesa, that indicates that there is a
> problem with your Qt libraries, or possibly your OpenGL driver, because
> normally configure doesn't look for osmesa if Qt offscreen OpenGL
> rendering works.
> 
> I am interested to see exactly which configure test fails and why, from
> your config.log.

After a stroll in the park nearby and re-investigating, I found that
lib64Qt5Help<...>*-devel* was missing and the GUI wasn't built at all. 
lib64Qt5Help<...> was there but that isn't sufficient.

So all I can say is "sorry for the noise" and thanks for your reply!

Philip




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