[Bf-committers] Windows lib changes

[Ray Molenkamp]

fixed make_update.py ! however the mac and windows buildbots seem to have gone awol so can't test.

--Ray

On 2019-11-08 4:26 p.m., Brecht Van Lommel wrote:
> The buildbot can probably be fixed by updating the lib folder name in
> build_files/utils/make_update.py.
>
> On Fri, Nov 8, 2019 at 5:16 PM Ray Molenkamp <ray at lazydodo.com> wrote:
>
>> So... that broke the windows build bot, if anyone with access
>> to the windows bot could check out the libs that be great!
>>
>>  --Ray
>>
>> On 2019-11-08 9:02 a.m., Ray Molenkamp wrote:
>>> All,
>>>
>>> Since the beginning of time we have always used a
>>> weird mix of using the static C runtime for some
>>> parts of blender while using the dynamic runtime
>>> for others.
>>>
>>> No-one exactly remembers how this came to be, but
>>> what was clear that mixing runtimes is 'not great'
>>> and that it eventually would cause issues, which
>>> it recently did [1]
>>>
>>> Today I'm cleaning it up and switching blender
>>> over to the dynamic runtime on windows.
>>>
>>> Now sadly this requires a whole new library set
>>> so if you are building blender on windows you may
>>> have some hiccups and unfortunately a large download.
>>>
>>> Ideally you'd run 'make update' *twice* and it will
>>> sort it self out. (Once to get the updated make.bat
>>> that knows about the new libs, and a second time to
>>> actually grab them)
>>>
>>> However there are some side cases where people
>>> did not follow our building guide and/or systems
>>> where cmake just behaved oddly, so here is a list of
>>> oddities you may run into and how to resolve them.
>>>
>>> 1) I get a build error along the lines of:
>>>
>>> Windows requires pre-compiled libs at:
>> 'c:/blender-git/blender/../lib/win64_vc15'.
>>> Please run make update in the blender source folder to obtain them.
>>>
>>> Solution:
>>>
>>> Do what it says, if "make update" does not work for you, see 2
>>>
>>> 2) I checked out the libraries my self, I don't have SVN
>>> in my path and/or "make update" does not work for me.
>>>
>>> It happens, not everybody is following our building
>>> instructions [2] for various reasons, and some environments
>>> just don't seem to play nice with our scripts.
>>>
>>> Solution:
>>>
>>> You can check out the new set of libraries manually from
>>>
>>> https://svn.blender.org/svnroot/bf-blender/trunk/lib/win64_vc15
>>>
>>> just make sure they and up in the next to the win64_vc14 folder
>>> you currently have and it should work.
>>>
>>> 3) I have a linker error mentioning a RuntimeLibrary mismatch
>>>
>>> These generally come in the form of:
>>>
>>> 'RuntimeLibrary': value 'MTd_StaticRelease' doesn't match value
>> 'MDd_DynamicRelease' in [somefile]
>>> This seems to be coming from CMake not always picking
>>> up on changes in the platform settings.
>>>
>>> Solution:
>>>
>>> Remove your build folder and start a fresh build
>>>
>>> 4) MSVC 2015
>>>
>>> MSVC2015 has been superseded by 2 newer versions both
>>> available for free, 2015 support will be dialed back
>>> to the same level as 32 bit support. We don't test it
>>> nor supply libraries for it anymore, however if you
>>> have your own set of libraries and have patches that
>>> help with vs2015 specific issues you are always
>>> welcome to submit those.
>>>
>>> Solution: Update to vs2017 or vs2019
>>>
>>> 5) I have a branch that has not merged this change yet.
>>>
>>> That's OK, the static vc14 libraries will be available
>>> for some time. However no further updates will be done
>>> to them.
>>>
>>> Special acknowledgments:
>>>
>>> Thanks to @Harleya and @deadpin on chat for helping test
>>> so we could have an as smooth as possible transition to
>>> the new libs.
>>>
>>> [1] https://developer.blender.org/D5387#122165
>>> [2] https://wiki.blender.org/wiki/Building_Blender/Windows
>>>
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