[Build] Fix misleading error messages #13887
Merged
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Currently, in
FindLLVM.cmake
, when thellvm-config
commands fail, the error message might beFatal error executing: ON --libfiles
(sinceUSE_LLVM=ON
), which is misleading.In this PR,
${use_llvm}
is changed to${LLVM_CONFIG}
, and the error messages will be more comprehensible.