smeenai added reviewers: beanz, phosek.
smeenai added a comment.

I think it might be more appropriate to pass NO_SYSTEM_ENVIRONMENT_PATH to 
find_package in case CMAKE_SYSROOT or CMAKE_CROSSCOMPILING are set? That way, 
we won't search the host system for libxml2 in those cases, but we'll still be 
able to find it in the custom sysroot or cross-compilation SDK if it's present.


Repository:
  rC Clang

https://reviews.llvm.org/D48459



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