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Build failure with python 3.5 and latest blender 2.76 on Mageia Build System
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Hi Blender team,

I can no more compile blender 2.76 since new python 3.5 :( (same for blender 2.75a)

Here is the full log of blender compile from Build System Mageia:

In file included from /usr/include/python3.5m/Python.h:53:0,

from /home/iurt/rpmbuild/BUILD/blender-2.76/source/blender/python/intern/gpu.c:40:

/usr/include/python3.5m/pyatomic.h:35:5: sorry, unimplemented: '_Atomic' with OpenMP

_Atomic void *_value;

source/blender/python/intern/CMakeFiles/bf_python.dir/build.make:62: recipe for target 'source/blender/python/intern/CMakeFiles/bf_python.dir/gpu.c.o' failed
make[2]: * [source/blender/python/intern/CMakeFiles/bf_python.dir/gpu.c.o] Error 1
CMakeFiles/Makefile2:6615: recipe for target 'source/blender/python/intern/CMakeFiles/bf_python.dir/all' failed
* [source/blender/python/intern/CMakeFiles/bf_python.dir/all] Error 2

make[1]: *** Waiting for unfinished jobs....

And here is the spec file for full build options:

from what could the build issue come?

Thanks in advance.

Event Timeline

Geiger David (daviddavid) raised the priority of this task from to 90.
Geiger David (daviddavid) updated the task description. (Show Details)
Geiger David (daviddavid) edited a custom field.
Bastien Montagne (mont29) changed the task status from Unknown Status to Archived.Oct 13 2015, 9:22 AM
Bastien Montagne (mont29) claimed this task.

Thanks for the report, but please do not report here build issues, even less if it happens with currently not officially supported configuration.

We intend to switch to py3.5 soonish though, @Campbell Barton (campbellbarton) uses it already since weeks or more, so suggest you rather send a mail to our ML (bf-committers) or directly drop into IRC (#blendercoders on

Note that a quick search on the web suggests that issue is more due to update to gcc5.0 than to py3.5, though?

I do not know about gcc5 but what I know is that with blender 2.75a and python 3.4 and gcc 5.2.1 it has built successfully.

But with python 3.5 and same configuration it doesn't built anymore.

Ok, but in any case, that kind of issue is for our ML/IRC, not the bug tracker.

This is a bug in Python which will be fixed as part of Python 3.5.1:

Ok thanks for your answers :)

I'll see with our python maintainer.

Not sure if anyone knows, but this bug is now influencing master, at least on my system, ubuntu 15.04.

me too, I have to download and compile python 3.5.1 rc to make sure the build tunning