Unable to compile lib_InternalSwiftSyntaxParser myself from latest commit

Development Source Tooling
12

Not sure if I have too much to add. A couple of notes:

  1. CMakeError.txt is expected to contain many errors. Its just a collection of the failed commands that ran during the detection (and the expectation is that there will be failures, its just trying different things to learn about the environment)

  2. There is one piece of detail that I think hasn't been discussed yet:

-- Found assembler: /Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc

Why is it falling back to cc? I would expect that to be clang not cc (cc is the traditional Unix name for the C compiler). This is yanked from a random CI run, but this is what I would expect:

-- The C compiler identification is AppleClang 12.0.0.12000022
-- Check for working C compiler: /Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang
-- Check for working C compiler: /Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -- works

I'm left wondering if CMake is correctly identifying the compiler or not. That is probably the first thread that I would chase, trying to figure out why its not picking up clang/clang++.