While SCons building system was serving us really good for ages it's no longer
having much attention by the developers and started to become quite a difficult
task to maintain.
What's even worse -- there started to be quite serious divergence between SCons
and CMake which was only accumulating over the releases now. The fact that none
of the active developers are really using SCons and that our main studio is also
using CMake spotting bugs in the SCons builds became quite a difficult task and
we aren't always spotting them in time.
Meanwhile CMake became really mature building system which is available on every
platform we support and arguably it's also easier and more robust to use.
This commit includes:
- Removal of actual SCons building system
- Removal of SCons git submodule
- Removal of documentation which is stored in the sources and covers SCons
- Tweaks to the buildbot master to stop using SCons submodule
(this change requires deploying to the server)
- Tweaks to the install dependencies script to skip installing or mentioning
SCons building system
- Tweaks to various helper scripts to avoid mention of SCons folders/files
as well
Reviewers: mont29, dingto, dfelinto, lukastoenne, lukasstockner97, brecht, Severin, merwin, aligorith, psy-fi, campbellbarton, juicyfruit
Reviewed By: campbellbarton, juicyfruit
Differential Revision: https://developer.blender.org/D1680
- Remove deprecated/unused builders
- Remove unused SCons OSX slave configuration
- Remove SCons slave logic, it is not giving error about unknown building
system used for the slave.
This is totally matching the way how buildbot was naming the directory.
Currently there's a bit of code duplication, but it'll be eliminated once
we'll get rid of SCons ;)
No idea why they works on windows, but points are:
- libs/tests folder is NOT checked out on any platforms
- render_povray addon does mkdir on a path which might not have parents
There might be some other issues, but those are kinda stoppers for us.
It is expected to be in the build folder for the cmake.
Ideally it should be build/<builder> or install/<builder> but that's a bit more
involved change. Will look into it later.
This is so called "seems to work in dry tests" commit which is aimed to switch
linux release environment to CMake.
Some notes:
- There's no special handle of libstdc++, but it wasn't really static for quite
some time in SCons configuration and nobody really complained.
- It was quite tricky to get OpenMP linked statically with just using some
configuration so we went ahead and added a special option to CMake now which is
only exist on Linux and advertised as shouldn't be used.
- Packing is happening manually in slave_pack.py. This is because we have to add
some really special files to the archive (mesa libraries for example) which we
can't really handle from CMake/CPack in a nice generic way.
Don't think it's bad approach, at least crappynness is localized and it's not
_that_ crappy anyway.
- Windows buildbot should keep working, but needs doublechecing. It's just a
build folder changed, but you never know what it might imply.
- Some further tweaks are likely needed to ensure all builders are working.
Thanks Campbell for assistance in this patch!
Currently disable all of them, in practice i think way to go should be:
- Disable Experimental kernels on 32 bit, build up to sm_35
- Later we can drop all 32bit kernels, but try to keep at least one release
with some of the kernels (they'll cover 99% of users anyway)
Before doing any changes we should surely communicate such a changes before
we apply them.
Our version of clang fails with latest SDK. It's not really clear if such
change will disable openmp or not (-fopenmp doesn't throw an error, but
it might be a silent fail).
In any case, builds without OpenMP is better than no builds at all.\
This is more an experiment, not guaranteed to work but at the same time
building of kernels seems to work manually in the same chroot. Perhaps
latest changes helped compiler to optimize registers usage.
This commit makes sure Linux and Windows buildbots are using OpenSubdiv
and also enables OpenSubdiv by default on Windows.
OSX is kept disabled still, this is due to OpenGL restrictions which are
not solved in any way yet.
Linux is defaults to OpenSubdiv disabled because it needs precompiled
library.
The documentation could be found there:
http://wiki.blender.org/index.php/User:Nazg-gul/OpenSubdiv
Recent changes to kernel broke compilation of the kernels again, need some
other kind of solution for this issue.
Don't have much time for this currently, but will be addressed before the
release.
Meanwhile it's better to have some buildbot builds instead of totally failing
one.
