[clang] [lldb] [llvm] [cmake] Add support for statically linking libxml2 (PR #166867)

[Petr Hosek via llvm-commits]

petrhosek wrote:

I don't see any obvious culprit but this is clearly a regression that needs to be investigated. I'd suggest reverting the change in the meantime.

https://github.com/llvm/llvm-project/pull/166867