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Meta+Documentation: Require Xcode 14.3 or Clang 14 for the host compiler

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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 commit is contained in:
Daniel Bertalan 2023-05-21 11:04:47 +02:00 • committed by Andrew Kaster
parent e5618b17c4
commit 4202bb597b
6 changed files with 20 additions and 14 deletions
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Meta/Lagom/ReadMe.md
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@ -61,7 +61,7 @@ To build with LLVM's libFuzzer, invoke the ``BuildFuzzers.sh`` script with no ar
./Build/lagom-fuzzers/FuzzSomething # The full list can be found in Fuzzers/CMakeLists.txt
```
(Note that we require clang >= 13, see the pick_clang() function in the script for the paths that are searched)
(Note that we require clang >= 14, see the pick_clang() function in the script for the paths that are searched)
To build fuzzers without any kind of default instrumentation, pass the ``--standalone`` flag to ``BuildFuzzers.sh``: