message(STATUS "OB_BUILD_LIBOBLOG ${OB_BUILD_LIBOBLOG}")
if (OB_BUILD_LIBOBLOG)
    if( NOT EXISTS "${PROJECT_SOURCE_DIR}/deps/logmessage/.git" )
        message("not exists ${PROJECT_SOURCE_DIR}/deps/logmessage/.git")
        find_package(Git QUIET)
        if (GIT_FOUND)
            execute_process(COMMAND ${GIT_EXECUTABLE} submodule update --init --remote
                WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
                RESULT_VARIABLE GIT_SUBMOD_RESULT)
            if (NOT GIT_SUBMOD_RESULT EQUAL "0")
                message(SEND_ERROR "git submodule update --init --remote failed with ${GIT_SUBMOD_RESULT}, please checkout submodules")
            endif()
            add_subdirectory(${PROJECT_SOURCE_DIR}/deps/logmessage ${PROJECT_BINARY_DIR}/deps/logmessage EXCLUDE_FROM_ALL)
            add_definitions(-D_GLIBCXX_USE_CXX11_ABI=0)
            add_subdirectory(src)
            add_subdirectory(tests)
        else()
            message(SEND_ERROR "The git submodules are not available. Please run
            git submodule update --init --recursive"
            )
        endif()
    else()
        add_subdirectory(${PROJECT_SOURCE_DIR}/deps/logmessage ${PROJECT_BINARY_DIR}/deps/logmessage EXCLUDE_FROM_ALL)
        add_definitions(-D_GLIBCXX_USE_CXX11_ABI=0)
        add_subdirectory(src)
        add_subdirectory(tests)
    endif()
endif()