[CMake] do not let builtin_clang search again for LLVM if builtin_llvm=OFF - #23371

[CMake] do not let builtin_clang search again for LLVM if builtin_llvm=OFF#23371

guitargeek merged 2 commits into

root-project:masterroot-project/root:masterfrom

ferdymercury:refindLLVMferdymercury/root:refindLLVMCopy head branch name to clipboard