[Slackbuilds-users] qt5 fails to build

[Andrzej Telszewski]

On 10/01/17 16:49, Andrzej Telszewski wrote:
> On 10/01/17 15:25, Andrzej Telszewski wrote:
>> Hi,
>>
>> When trying to build qt5, it fails miserably ;-)
>>
>> Could it be related to _Wed Dec 28 21:05:19 UTC 2016_ python-2.7.13
>> update in Slackware?
>>
>
> This certainly looks like something is wrong with the Slackware's update.
>
> Based on:
> https://github.com/NixOS/nixpkgs/issues/10092
>
> I reverted to Python 2.7.11 and:
>
> $ python
> Python 2.7.11 (default, Mar  3 2016, 13:35:30)
> [GCC 5.3.0] on linux2
> Type "help", "copyright", "credits" or "license" for more information.
>>>> import multiprocessing
>>>> multiprocessing.RLock()
> <RLock(None, 0)>
>>>>
>
> Then I updated to Python 2.7.13 from _patches_ and:
>
> $ python
> Python 2.7.13 (default, Dec 28 2016, 13:46:09)
> [GCC 5.3.0] on linux2
> Type "help", "copyright", "credits" or "license" for more information.
>>>> import multiprocessing
>>>> multiprocessing.RLock()
> Traceback (most recent call last):
>   File "<stdin>", line 1, in <module>
>   File "/usr/lib64/python2.7/multiprocessing/__init__.py", line 182, in
> RLock
>     from multiprocessing.synchronize import RLock
>   File "/usr/lib64/python2.7/multiprocessing/synchronize.py", line 59,
> in <module>
>     " function, see issue 3770.")
> ImportError: This platform lacks a functioning sem_open implementation,
> therefore, the required synchronization primitives needed will not
> function, see issue 3770.
>>>>
>
>
> I then just rebuilt Python 2.7.13 from _patches_ and:
>
> $ python
> Python 2.7.13 (default, Jan 10 2017, 15:45:07)
> [GCC 5.3.0] on linux2
> Type "help", "copyright", "credits" or "license" for more information.
>>>> import multiprocessing
>>>> multiprocessing.RLock()
> <RLock(None, 0)>
>>>>
>
>
> Somebody calls Pat?
>

OK, it's confirmed ;-)

https://www.linuxquestions.org/questions/slackware-14/problem-building-qt5-4175596534/

-- 
Best regards,
Andrzej Telszewski