[Issue 20405] pipelink.exe ignores LLVMInstallDir property when lld-link.exe is used.

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20405

--- Comment #2 from Richard Manthorpe <rmanth at gmail.com> ---
Thanks for looking into this! It needs the
Microsoft.VisualStudio.Component.VC.Llvm.ClangToolset component (C++ Clang-cl
for v142 build tools).

There's no GUI setting for it, you just have to set it in a property group in a
project file or a props file. It needs to be set after
Microsoft.Cpp.Default.props is loaded.

It's mentioned here:
https://devblogs.microsoft.com/cppblog/clang-llvm-support-for-msbuild-projects/

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