fix tdl_sdk external compilation bug

Change-Id: I8e7db34a7aa8009769736bab69fb1a94e4c7d553
Reviewed-on: https://gerrit-ai.sophgo.vip:8443/145335
Reviewed-by: 振兴 叶 <zhenxing.ye@sophgo.com>

Author: sophgo-yezx

CMakeLists.txt

@@ -114,7 +114,7 @@ endif()
 get_directory_property(compile_defs COMPILE_DEFINITIONS)
 message(STATUS "All compile definitions: ${compile_defs}")
 
-set(IS_LOCAL TRUE)
+set(IS_LOCAL FALSE)
 
 if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/.git")
   # Get current commit
@@ -157,6 +157,19 @@ if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/.git")
 
 endif()
 
+if (NOT IS_LOCAL AND NOT EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/dependency/thirdparty")
+
+  execute_process(
+    COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/scripts/download_thirdparty.sh
+    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+    RESULT_VARIABLE DOWNLOAD_RESULT
+  )
+  if(NOT DOWNLOAD_RESULT EQUAL 0)
+    message(FATAL_ERROR "download_thirdparty.sh failed: ${DOWNLOAD_RESULT}")
+  endif()
+
+endif()
+
 foreach(flags CMAKE_CXX_FLAGS CMAKE_C_FLAGS)
     string(REPLACE "-O3" "-Os" ${flags} "${${flags}}")
 endforeach()

docs/getting_started/build.md

@@ -24,13 +24,6 @@
     git clone https://github.com/sophgo/tdl_sdk.git
     ```
 
-* 下载第三方依赖
-
-    ```shell
-    cd tdl_sdk
-    ./scripts/download_thirdparty.sh
-    ```
-
 * nfs配置
 
   * 安装nfs服务端