C compiler cannot create executables when using `CLANGARM64`

Summarry

I am adding a workflow job that compiles some C code on windows using msys2 with autotools. When I specify msystem to be MINGW64, MINGW32, UCRT64 or CLANG64 everything works fine. However, when I specify msystem to be CLANGARM64, I get an error when running ./configure which says "C compiler cannot create executables".

MRE

Inside .github/workflows/mre.yml

name: test
on: workflow_dispatch

jobs:
  msys:
    defaults:
      run:
        shell: msys2 {
    runs-on: windows-latest
    steps:
      - uses: msys2/setup-msys2@v2
        with:
          update: true
          msystem: CLANGARM64
          pacboy: toolchain autotools
      - uses: actions/checkout@v4
      - name: Configure . . .
        run: autoreconf -if && ./configure

Expected behaviour

Everything to pass, as is the case when changing CLANGARM64 to one of the other systems.

Additional info

Please see config.log for the detailed log, and this action for the place where this error occurred.

Start with .github/workflows/mre.yml and reproduce the CLANGARM64 run using autoreconf -if && ./configure. Read the linked config.log and failed GitHub Actions run to identify why the C compiler cannot create executables; done means the workflow passes with CLANGARM64 as it does for the other MSYS2 systems.