if(PROJECT_ENABLE_ROCKSDB)
  if(PROJECT_BUILD)
    find_library(ROCKSDB_LIBRARY NAMES librocksdb.a REQUIRED)

    add_definitions(-DPROJECT_ENABLE_ROCKSDB)

    link_libraries(
      ${ROCKSDB_LIBRARY}
    )
  elseif(NOT PROJECT_IS_MINGW OR CMAKE_HOST_WIN32)
    ExternalProject_Add(rocksdb_project
      PREFIX external
      URL ${PROJECT_3RD_PARTY_DIR}/rocksdb-${ROCKSDB_VERSION}.tar.gz
      URL_HASH SHA256=54ca90dd782a988cd3ebc3e0e9ba9b4efd563d7eb78c5e690c2403f1b7d4a87a
      LIST_SEPARATOR |
      CMAKE_ARGS ${PROJECT_EXTERNAL_CMAKE_FLAGS}
        -DBUILD_SHARED_LIBS=${PROJECT_BUILD_SHARED_LIBS}
        -DBUILD_STATIC_LIBS=ON
        -DFAIL_ON_WARNINGS=OFF
        -DPORTABLE=1
        -DROCKSDB_BUILD_SHARED=${PROJECT_BUILD_SHARED_LIBS}
        -DROCKSDB_INSTALL_ON_WINDOWS=ON
        -DWITH_BENCHMARK=OFF
        -DWITH_BENCHMARK_TOOLS=OFF
        -DWITH_CORE_TOOLS=OFF
        -DWITH_EXAMPLES=OFF
        -DWITH_GFLAGS=OFF
        -DWITH_IOSTATS_CONTEXT=OFF
        -DWITH_PERF_CONTEXT=OFF
        -DWITH_TESTS=OFF
        -DWITH_TOOLS=OFF
        -DWITH_TRACE_TOOLS=OFF
        -DWITH_ZLIB=ON
    )

    set(PROJECT_DEPENDENCIES 
      ${PROJECT_DEPENDENCIES}
      rocksdb_project
    )
  endif()
endif()