clangd can't find includes if clang is build with nonstandard CLANG_RESOURCE_DIR

In Gentoo, the clang build passes -DCLANG_RESOURCE_DIR="../../../../lib/clang/${clang_version}" and installs clang's system headers to /usr/lib/llvm/14/bin/../../../../lib/clang/${clang_version}/include/ (i.e., /usr/lib/clang/${clang_version}/include/). But ClangdClient::ClangdClient calls clangdIncludePath which seems to implicitly assume that the headers are where they would otherwise be if CLANG_RESOURCE_DIR defaulted to "". Presumably, this appears to be why the correct header path doesn't show up in the "Header Paths" section of the "C++ Code Model Inspector" and is not being found by clangd.

Shouldn't clang -print-resource-dir be employed to help find the correct include path at runtime?