am aea1cae4: Merge "Revert "Revert "Introduce CC/CXX/JAVAC_WRAPPER to wrap the calls to clang."""

* commit 'aea1cae4f5a3fcc5e6ecdca24409f102469b411b':
  Revert "Revert "Introduce CC/CXX/JAVAC_WRAPPER to wrap the calls to clang.""