[llvm] [CI][Github] Install Clang in Windows container (PR #164519)

[via llvm-commits]

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@@ -98,3 +98,45 @@ RUN powershell -Command \
     Add-Type -AssemblyName System.IO.Compression.FileSystem ; \
     [System.IO.Compression.ZipFile]::ExtractToDirectory('actions-runner-win.zip', $PWD) ;\
     rm actions-runner-win.zip
+
+# Set the LLVM_VERSION environment variable
+RUN powershell -Command [Environment]::SetEnvironmentVariable('LLVM_VERSION', '21.1.2', 'Machine')
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cmtice wrote:

Yes, they do. For some reason I was thinking I had to use the Powershell syntax.  Fixed


https://github.com/llvm/llvm-project/pull/164519