diff --git a/cmake/external/numpy.cmake b/cmake/external/numpy.cmake
index 9d686ecaac9818be34915da783dd73d927d45542..d01cff9722b84c7365b722983d5dd0e43c4ed1d5 100644
--- a/cmake/external/numpy.cmake
+++ b/cmake/external/numpy.cmake
@@ -59,6 +59,8 @@ IF(NOT ${NUMPY_FOUND})
         DEPENDS python setuptools cython
     )
 
+    LIST(APPEND external_project_dependencies numpy)
+
     # find numpy include directory
     FILE(WRITE ${PROJECT_BINARY_DIR}/FindNumpyPath.py
         "try: import numpy; print(numpy.get_include())\nexcept:pass\n")
diff --git a/cmake/external/protobuf.cmake b/cmake/external/protobuf.cmake
index 0138f082d942c4917aaeeafe0650c18c84e2e099..efd07eb807a170a1401f62728cc4004e0b76bf2f 100644
--- a/cmake/external/protobuf.cmake
+++ b/cmake/external/protobuf.cmake
@@ -42,10 +42,16 @@ IF(WIN32)
         "${PROTOBUF_INSTALL_DIR}/lib/libprotoc.lib" CACHE FILEPATH "protobuf libraries." FORCE)
   SET(PROTOBUF_PROTOC_EXECUTABLE "${PROTOBUF_INSTALL_DIR}/bin/protoc.exe" CACHE FILEPATH "protobuf executable." FORCE)
 ELSE(WIN32)
+  FIND_PATH(PROTOBUF_LIBS_DIR libprotoc.a
+      PATHS
+      ${PROTOBUF_INSTALL_DIR}/lib64
+      ${PROTOBUF_INSTALL_DIR}/lib
+      NO_DEFAULT_PATH
+  )
   SET(PROTOBUF_LIBRARIES
-        "${PROTOBUF_INSTALL_DIR}/lib/libprotobuf-lite.a"
-        "${PROTOBUF_INSTALL_DIR}/lib/libprotobuf.a"
-        "${PROTOBUF_INSTALL_DIR}/lib/libprotoc.a" CACHE FILEPATH "protobuf libraries." FORCE)
+        "${PROTOBUF_LIBS_DIR}/libprotobuf-lite.a"
+        "${PROTOBUF_LIBS_DIR}/libprotobuf.a"
+        "${PROTOBUF_LIBS_DIR}/libprotoc.a" CACHE FILEPATH "protobuf libraries." FORCE)
   SET(PROTOBUF_PROTOC_EXECUTABLE "${PROTOBUF_INSTALL_DIR}/bin/protoc" CACHE FILEPATH "protobuf executable." FORCE)
 ENDIF(WIN32)
 
diff --git a/cmake/external/python.cmake b/cmake/external/python.cmake
index 7b66cb44e4f9f804a244fe7c3f685557fca66845..d6cdf535fee4eaad8d2f97c3d851243198612049 100644
--- a/cmake/external/python.cmake
+++ b/cmake/external/python.cmake
@@ -87,6 +87,9 @@ IF((NOT ${PYTHONINTERP_FOUND}) OR (NOT ${PYTHONLIBS_FOUND}))
     MESSAGE(FATAL_ERROR "Unknown system !")
   ENDIF()
 
+LIST(APPEND external_project_dependencies python)
+
 ENDIF()
 
 INCLUDE_DIRECTORIES(${PYTHON_INCLUDE_DIR})
+
diff --git a/cmake/external/swig.cmake b/cmake/external/swig.cmake
index 1ec61660bc0698f74cde024e35ab2a6a9ef4012a..2da826d37500305c0a101e19d33c921ee7c1b436 100644
--- a/cmake/external/swig.cmake
+++ b/cmake/external/swig.cmake
@@ -70,6 +70,9 @@ IF(NOT ${SWIG_FOUND})
         set(SWIG_DIR ${SWIG_INSTALL_DIR}/share/swig/${SWIG_TARGET_VERSION} CACHE FILEPATH "SWIG Directory" FORCE)
         set(SWIG_EXECUTABLE ${SWIG_INSTALL_DIR}/bin/swig CACHE FILEPATH "SWIG Executable" FORCE)
     ENDIF(WIN32)
+
+    LIST(APPEND external_project_dependencies swig)
+
 ENDIF()
 
 FUNCTION(generate_python_api target_name)
@@ -80,10 +83,12 @@ FUNCTION(generate_python_api target_name)
                 && mv ${PROJ_ROOT}/paddle/swig_paddle.py ${PROJ_ROOT}/paddle/py_paddle/swig_paddle.py
         DEPENDS ${PROJ_ROOT}/paddle/api/Paddle.swig
                 ${PROJ_ROOT}/paddle/api/PaddleAPI.h
+                ${external_project_dependencies}
         WORKING_DIRECTORY ${PROJ_ROOT}/paddle
         COMMENT "Generate Python API from swig")
     ADD_CUSTOM_TARGET(${target_name} ALL DEPENDS
                 ${PROJ_ROOT}/paddle/Paddle_wrap.cxx
                 ${PROJ_ROOT}/paddle/Paddle_wrap.h
-                ${PROJ_ROOT}/paddle/py_paddle/swig_paddle.py)
+                ${PROJ_ROOT}/paddle/py_paddle/swig_paddle.py
+                ${external_project_dependencies})
 ENDFUNCTION(generate_python_api)
diff --git a/cmake/external/warpctc.cmake b/cmake/external/warpctc.cmake
index d59e5e9c3af48c8cce197c287f28abfb1ed7afa7..2e678aadcf91b7ff4c1b396da8ba237c567c7dd3 100644
--- a/cmake/external/warpctc.cmake
+++ b/cmake/external/warpctc.cmake
@@ -40,8 +40,14 @@ IF(WIN32)
     SET(WARPCTC_LIBRARIES
         "${WARPCTC_INSTALL_DIR}/lib/warpctc.dll" CACHE FILEPATH "Warp-ctc Library" FORCE)
 ELSE(WIN32)
+    IF(APPLE)
+        SET(_warpctc_SHARED_SUFFIX dylib)
+    ELSE(APPLE)
+        SET(_warpctc_SHARED_SUFFIX so)
+    ENDIF(APPLE)
+
     SET(WARPCTC_LIBRARIES
-        "${WARPCTC_INSTALL_DIR}/lib/libwarpctc.dylib" CACHE FILEPATH "Warp-ctc Library" FORCE)
+        "${WARPCTC_INSTALL_DIR}/lib/libwarpctc.${_warpctc_SHARED_SUFFIX}" CACHE FILEPATH "Warp-ctc Library" FORCE)
 ENDIF(WIN32)
 
 LIST(APPEND external_project_dependencies warpctc)