diff --git a/cmake/external_libs/gflags.cmake b/cmake/external_libs/gflags.cmake
deleted file mode 100755
index d77b2e3..0000000
--- a/cmake/external_libs/gflags.cmake
+++ /dev/null
@@ -1,47 +0,0 @@
-if (HAVE_GFLAGS)
-    return()
-endif()
-
-include(ExternalProject)
-
-if ((${CMAKE_INSTALL_PREFIX} STREQUAL /usr/local) OR
-    (${CMAKE_INSTALL_PREFIX} STREQUAL "C:/Program Files (x86)/ascend"))
-    set(CMAKE_INSTALL_PREFIX ${PARSER_DIR}/output CACHE STRING "path for install()" FORCE)
-    message(STATUS "No install prefix selected, default to ${CMAKE_INSTALL_PREFIX}.")
-endif()
-
-set (gflags_CXXFLAGS "-D_GLIBCXX_USE_CXX11_ABI=0 -Dgoogle=ascend_private")
-if (ENABLE_GITEE)
-    set(REQ_URL "https://gitee.com/mirrors/gflags/repository/archive/v2.2.2.tar.gz")
-    set(MD5 "")
-else()
-    set(REQ_URL "https://github.com/gflags/gflags/archive/v2.2.2.tar.gz")
-    set(MD5 "")
-endif ()
-
-ExternalProject_Add(gflags_build
-                    URL ${REQ_URL}
-                    #URL /home/txd/workspace/linux_cmake/pkg/protobuf-3.8.0.tar.gz
-                    #SOURCE_DIR ${METADEF_DIR}/../../third_party/gflags/src/gflags-2.2.2 
-                    CONFIGURE_COMMAND ${CMAKE_COMMAND} -DCMAKE_CXX_FLAGS=${gflags_CXXFLAGS} -DCMAKE_INSTALL_PREFIX=${CMAKE_INSTALL_PREFIX}/gflags <SOURCE_DIR>
-                    BUILD_COMMAND $(MAKE)
-                    INSTALL_COMMAND $(MAKE) install
-                    EXCLUDE_FROM_ALL TRUE 
-)
-
-set(GFLAGS_PKG_DIR ${CMAKE_INSTALL_PREFIX}/gflags)
-
-add_library(gflags_static STATIC IMPORTED)
-
-set_target_properties(gflags_static PROPERTIES
-                      IMPORTED_LOCATION ${GFLAGS_PKG_DIR}/lib/libgflags.a
-)
-
-add_library(gflags INTERFACE)
-target_include_directories(gflags INTERFACE ${GFLAGS_PKG_DIR}/include)
-target_link_libraries(gflags INTERFACE gflags_static)
-
-add_dependencies(gflags gflags_build)
-
-#set(HAVE_GFLAGS TRUE CACHE BOOL "gflags build add")
-set(HAVE_GFLAGS TRUE)