5b24af5ea5
Building with clang on windows isn't an officially supported scenario
but it's something we'd like to keep working, but as it doesn't see
regular use, things tend to bit rot a bit.
0136289cb6 got things back into somewhat working order however the build
log came in at a little over 5.5GiB emitting a total of 11.787.294
warnings (827.847 unique), it was getting to the point where printing
all warnings, was a rather significant contributor to the total build
time.
this PR, suppress every single warning out of that build, one could
argue that some of these warnings are actually genuine and should be
enabled, and dealt with, the thing is, building with clang isn't
supported as of now and I honestly lack the time right now to sift
though this barrage of data.
given MSVC, Clang on mac and GCC on linux currently all build without
warnings, having clang on windows match that baseline seems like a
reasonable thing to do.
I left some notes in cmake flagging the potential cleanup, and added
counts of how often each warn occurred (The one off warns are much more
likely to lead to a genuine bug fix than the ones that produce a whole
lot of noise) so if someone wants to spend some effort they can do so
effectively.
The suppression is guarded with clang on windows specific guard and
should not affect any other platforms.
Pull Request: https://projects.blender.org/blender/blender/pulls/121085
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