diff --git a/cmake/generic.cmake b/cmake/generic.cmake
index 14b6909829741a8c9d7de57819bea5ceca173c3a..24a07c0a24143689e711e5b81df8a221ca95979d 100644
--- a/cmake/generic.cmake
+++ b/cmake/generic.cmake
@@ -362,10 +362,9 @@ function(pb_py_library TARGET_NAME)
   set(oneValueArgs TARGET_DIR)
   set(multiValueArgs SRCS)
   cmake_parse_arguments(pb_py_library "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
-  if (NOT ${pb_py_library_TARGET_DIR})
+  if (NOT pb_py_library_TARGET_DIR)
     set(pb_py_library_TARGET_DIR ${CMAKE_CURRENT_BINARY_DIR})
   endif()
-
   set(py_srcs)
   foreach(FIL ${pb_py_library_SRCS})
     get_filename_component(ABS_FIL ${FIL} ABSOLUTE)
diff --git a/doc/CMakeLists.txt b/doc/CMakeLists.txt
index 6fa42fd0c71e78cc2fa6b0fe2cb970baf4ac89ed..94dd3457fb5b513441c4c8e339e1862de9092517 100644
--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@@ -27,10 +27,6 @@ sphinx_add_target(paddle_docs
                   ${CMAKE_CURRENT_SOURCE_DIR}
                   ${SPHINX_HTML_DIR_EN})
 
-add_dependencies(paddle_docs
-  gen_proto_py)
-
-
 # configured documentation tools and intermediate build results
 set(BINARY_BUILD_DIR_CN "${CMAKE_CURRENT_BINARY_DIR}/cn/_build")
 
@@ -51,6 +47,3 @@ sphinx_add_target(paddle_docs_cn
                   ${SPHINX_CACHE_DIR_CN}
                   ${CMAKE_CURRENT_SOURCE_DIR}
                   ${SPHINX_HTML_DIR_CN})
-
-add_dependencies(paddle_docs_cn
-  gen_proto_py)
diff --git a/paddle/gserver/CMakeLists.txt b/paddle/gserver/CMakeLists.txt
index 3bd583773ad8e205a2ddf7c6702f560555f64e2b..0012636b8f618a1b45cfc801c04781e67694956f 100644
--- a/paddle/gserver/CMakeLists.txt
+++ b/paddle/gserver/CMakeLists.txt
@@ -58,7 +58,7 @@ endif()
 
 add_style_check_target(paddle_gserver ${GSERVER_SOURCES})
 add_style_check_target(paddle_gserver ${GSERVER_HEADER})
-add_dependencies(paddle_gserver paddle_proto)
+add_dependencies(paddle_gserver paddle_proto ${external_project_dependencies})
 if(WITH_TESTING)
     add_subdirectory(tests)
 endif()
diff --git a/paddle/math/CMakeLists.txt b/paddle/math/CMakeLists.txt
index 326cdb156c31eb84f43793b2d6d447133641a73d..9981de61606bda6baac103592125b929d4c12a3d 100644
--- a/paddle/math/CMakeLists.txt
+++ b/paddle/math/CMakeLists.txt
@@ -33,7 +33,7 @@ endif()
 add_style_check_target(paddle_math ${MATH_SOURCES})
 add_style_check_target(paddle_math ${MATH_HEADERS})
 
-add_dependencies(paddle_math paddle_proto)  # depends
+add_dependencies(paddle_math paddle_proto ${external_project_dependencies})  # depends
 if(WITH_TESTING)
     add_subdirectory(tests)
 endif()
diff --git a/paddle/optimizer/CMakeLists.txt b/paddle/optimizer/CMakeLists.txt
index bf878baaf0cee975508390fb59cfdf3e2ad94812..9996d01d18b1185e9b01f8b1e4aab325eb28c894 100644
--- a/paddle/optimizer/CMakeLists.txt
+++ b/paddle/optimizer/CMakeLists.txt
@@ -10,7 +10,7 @@ set(OPITMIZER_SRCS
   )
 
 add_library(paddle_optimizer STATIC ${OPITMIZER_SRCS})
-add_dependencies(paddle_optimizer paddle_proto)
+add_dependencies(paddle_optimizer paddle_proto ${external_project_dependencies})
 
 if(WITH_TESTING)
   add_simple_unittest(serialization_test)
diff --git a/paddle/parameter/CMakeLists.txt b/paddle/parameter/CMakeLists.txt
index a9e344afdcc3038a275a1c627db8ccaf7280cd09..d2ae1c16c6b7316f1a6facdef4b933693d6ba818 100644
--- a/paddle/parameter/CMakeLists.txt
+++ b/paddle/parameter/CMakeLists.txt
@@ -7,7 +7,7 @@ add_library(paddle_parameter STATIC
         ${PARAMETERS_SOURCES})
 add_style_check_target(paddle_parameter ${PARAMETERS_SOURCES})
 add_style_check_target(paddle_parameter ${PARAMETERS_HEADERS})
-add_dependencies(paddle_parameter paddle_proto)
+add_dependencies(paddle_parameter paddle_proto ${external_project_dependencies})
 if(WITH_TESTING)
     add_subdirectory(tests)
 endif()
diff --git a/paddle/pserver/CMakeLists.txt b/paddle/pserver/CMakeLists.txt
index 92dd286f04fe6e56addada8e861bda69004b23f1..f2e0b4b76bcadcf39f0a1673d543f670b1c28d38 100644
--- a/paddle/pserver/CMakeLists.txt
+++ b/paddle/pserver/CMakeLists.txt
@@ -40,7 +40,7 @@ add_library(paddle_pserver STATIC
 add_style_check_target(paddle_pserver ${PSERVER_SOURCES})
 add_style_check_target(paddle_pserver ${PSERVER_HEADERS})
 
-add_dependencies(paddle_pserver paddle_proto)
+add_dependencies(paddle_pserver paddle_proto ${external_project_dependencies})
 
 set(PSERVER_MAIN_SOURCES
     ParameterServer2Main.cpp)
diff --git a/paddle/trainer/CMakeLists.txt b/paddle/trainer/CMakeLists.txt
index b8f03fa7e73514286a6f06cda36e4832c62daa76..6414c399561575c13074c41598184a78f84373ee 100644
--- a/paddle/trainer/CMakeLists.txt
+++ b/paddle/trainer/CMakeLists.txt
@@ -41,7 +41,8 @@ add_style_check_target(paddle_trainer_lib
 add_style_check_target(paddle_trainer_lib
     ${TRAINER_HEADERS})
 add_dependencies(paddle_trainer_lib
-    paddle_proto)
+    paddle_proto
+    ${external_project_dependencies})
 
 macro(add_paddle_exe TARGET_NAME)
   add_executable(${TARGET_NAME} ${ARGN})
diff --git a/paddle/utils/CMakeLists.txt b/paddle/utils/CMakeLists.txt
index f5c399256ac0a7d50409dd9aea618801d99e4f5c..7a4977935ede4878c07f4fb6ba0dd76bf50acd42 100644
--- a/paddle/utils/CMakeLists.txt
+++ b/paddle/utils/CMakeLists.txt
@@ -17,7 +17,7 @@ add_library(paddle_utils STATIC
 add_style_check_target(paddle_utils ${UTIL_HEADERS})
 add_style_check_target(paddle_utils ${UTIL_SOURCES}
     ${UTIL_ARCH_SOURCES})
-add_dependencies(paddle_utils paddle_proto)
+add_dependencies(paddle_utils paddle_proto ${external_project_dependencies})
 if(WITH_TESTING)
     add_subdirectory(tests)
 endif()
diff --git a/proto/CMakeLists.txt b/proto/CMakeLists.txt
index 9b29d43d73c8a54c329e8141202098e39a8a6658..4402f2c89947a1424654854972aa6560fc6ede08 100644
--- a/proto/CMakeLists.txt
+++ b/proto/CMakeLists.txt
@@ -1,3 +1,3 @@
 file(GLOB proto_filenames . *.proto)
 pb_cc_library(paddle_proto SRCS ${proto_filenames})
-pb_py_library(gen_proto_py SRCS ${proto_filenames} TARGET_DIR ${CMAKE_CURRENT_SOURCE_DIR})
+pb_py_library(gen_proto_py SRCS ${proto_filenames} TARGET_DIR ${PROJ_ROOT}/python/paddle/proto)