message: Amazon: installing/upgrading boost removed build directory
diff: printf "\\n\\tExiting now.\\n"
  exit 1
  fi
  + if [ -d "$BUILD_DIR" ]; then
  + if ! rm -rf "$BUILD_DIR"
  + then
  + printf "\\tUnable to remove directory %s. Please remove this directory and run this script %s again. 0\\n" "$BUILD_DIR" "${BASH_SOURCE[0]}"
  + printf "\\tExiting now.\\n\\n"
  + exit 1;
  + fi
  + fi
  printf "\\tBoost successfully installed @ %s/opt/boost_1_67_0.\\n" "${HOME}"
  else
  printf "\\tBoost 1.67.0 found at %s/opt/boost_1_67_0.\\n" "${HOME}"
  