known macOS fixes to pull

[illwieckz]

I noticed there are some macOS-related fixes in that fork: https://github.com/xuewuli/crunch

Those fixes are mixed with other related features so some manpower is required to extract the fixes we may want before merging them.

Currently, the crn lib (the part integrated in the engine) is known to build on macOS, but the crunch tool is known to not build yet, so we may be interested in some of these fixes.

I open that issue to not forget about those fixes and their availability.

[illwieckz]

The commit message explicitly talks about iOS so maybe there are some non-x86 fixes as well there.

[illwieckz]

See also:

• Add Macos support Unity-Technologies/crunch#15

[illwieckz]

The fixes from Unity-Technologies#15 by @blaztinn look easier to review as the one in https://github.com/xuewuli/crunch by @xuewuli as it is like a jumbo commit, so we may start with Unity-Technologies#15 and then look at https://github.com/xuewuli/crunch to see if there are extra stuff to cherry-pick.

[illwieckz]

@ArctypeZach would you be able to merge Unity-Technologies#15 on top of our tree on your side and,

1. test it on mac to check if it works on your side, if possible on M1 too,
2. and eventually review the code?

[ArctypeZach]

Yup - can do over the weekend

[illwieckz]

Done:

• import macOS fixes from blaztinn/macos #33