There have been multiple reports of Xcode 14.0 (based on upstream LLVM
14) segfaulting when compiling `LibCore/Process.cpp`. Let's require
Xcode 14.3, which is a known good version based on LLVM 15.
Note that Xcode 14.3 requires macOS Ventura, so users of Monterey or
older are expected to get Homebrew Clang instead.
Homebrew Clang 13 also suffers from the same crash. Although I have not
tested on Linux, the backtrace points to the middle-end, so x86_64 is
also likely to be affected. LLVM 14 was released 14 months ago, so it's
not an unreasonable requirement.
This PR includes information that highlights the importance of
updating Xcode on MacOS. I ran into problems building serenity
on MacOS because I had Xcode installed but not updated in a while.
This triggered seemingly unrelated errors that were easily solved
by updating Xcode.
This should prevent a build issue caused by a potential
conflicting zstd installation on M1 Mac.
This was manifested in a linker error when building
the GNU toolchain:
```
Undefined symbols for architecture arm64:
[gcc/build] "_ZSTD_compress", referenced from:
```
As of qemu 6.0.0, it should already have the entitlement to access the
Hypervior.framework by default, so re-codesigning the binary is
no-longer necessary.
8a74ce618b
