e32940357f
- Once HIP_VDI_HOME is defined but HIP_CLANG_INCLUDE_PATH is not, calculate it directly without HIP_CLANG_PATH is defined or not; Otherwise, we may leave HIP_CLANG_INCLUDE_PATH undefined, if clang is not installed following the official way (so far, HIP-Clang breaks that), we may leave HIP_CLANG_INCLUDE_PATH undefined before its uses.