refine python lib link (#47681)

* refine python lib link

Author: wanghuancoder

paddle/fluid/eager/CMakeLists.txt

@@ -78,6 +78,10 @@ cc_library(
        autograd_meta
        hook_utils)
 
+if(NOT ((NOT WITH_PYTHON) AND ON_INFER))
+  target_link_libraries(utils ${PYTHON_LIBRARIES})
+endif()
+
 if(NOT ((NOT WITH_PYTHON) AND ON_INFER))
   cc_library(
     saved_tensors_hooks

paddle/fluid/eager/api/generated/eager_generated/backwards/CMakeLists.txt

@@ -9,4 +9,5 @@ if(NOT (NOT WITH_PYTHON AND ON_INFER))
     SRCS nodes.cc ${eager_manual_nodes}
     DEPS ${eager_deps})
   add_dependencies(final_dygraph_node eager_codegen)
+  target_link_libraries(final_dygraph_node ${PYTHON_LIBRARIES})
 endif()

paddle/fluid/eager/api/generated/eager_generated/forwards/CMakeLists.txt

@@ -9,4 +9,5 @@ if(NOT (NOT WITH_PYTHON AND ON_INFER))
     SRCS dygraph_functions.cc ${eager_manual_functions}
     DEPS ${eager_deps})
   add_dependencies(final_dygraph_function eager_codegen)
+  target_link_libraries(final_dygraph_function ${PYTHON_LIBRARIES})
 endif()

paddle/fluid/eager/auto_code_generator/generate_file_structures.py

@@ -143,7 +143,8 @@ def GenerateFileStructureForIntermediateDygraph(eager_dir, split_count):
         for i in range(split_count):
             f.write("nodes" + str(i + 1) + ".cc ")
         f.write("${fluid_manual_nodes} DEPS ${eager_deps} ${fluid_deps})\n")
-        f.write("add_dependencies(dygraph_node copy_dygraph_node)")
+        f.write("add_dependencies(dygraph_node copy_dygraph_node)\n")
+        f.write("target_link_libraries(dygraph_node ${PYTHON_LIBRARIES})\n")
 
     with open(forwards_level_cmakelist_path, "w") as f:
         f.write("add_custom_target(\n")
@@ -181,8 +182,9 @@ def GenerateFileStructureForIntermediateDygraph(eager_dir, split_count):
             "${fluid_manual_functions} DEPS ${eager_deps} ${fluid_deps} ${GLOB_OP_LIB} ${GLOB_OPERATOR_DEPS})\n"
         )
         f.write(
-            "add_dependencies(dygraph_function copy_dygraph_forward_functions)"
+            "add_dependencies(dygraph_function copy_dygraph_forward_functions)\n"
         )
+        f.write("target_link_libraries(dygraph_function ${PYTHON_LIBRARIES})\n")
 
     with open(generated_level_cmakelist_path, "w") as f:
         f.write("add_subdirectory(forwards)\nadd_subdirectory(nodes)")