message: use clang/clang++ to build EOS in build.sh
diff: @@ -78,5 +78,5 @@ mkdir -p ${BUILD_DIR}
  cd ${BUILD_DIR}
  # Build EOS
  -cmake -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} -DWASM_LLVM_CONFIG=${WASM_LLVM_CONFIG} -DBINARYEN_BIN=${BINARYEN_BIN} -DOPENSSL_ROOT_DIR=${OPENSSL_ROOT_DIR} -DOPENSSL_LIBRARIES=${OPENSSL_LIBRARIES} ..
  +cmake -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} -DCMAKE_CXX_COMPILER=clang++-4.0 -DCMAKE_C_COMPILER=clang-4.0 -DWASM_LLVM_CONFIG=${WASM_LLVM_CONFIG} -DBINARYEN_BIN=${BINARYEN_BIN} -DOPENSSL_ROOT_DIR=${OPENSSL_ROOT_DIR} -DOPENSSL_LIBRARIES=${OPENSSL_LIBRARIES} ..
  make -j4
  