set PROTOBUF_VERSION in setup.py

cmake/external/protobuf.cmake

@@ -14,7 +14,8 @@
 
 INCLUDE(ExternalProject)
 
-FIND_PACKAGE(Protobuf 3.1)
+set(PROTOBUF_VERSION 3.1)
+FIND_PACKAGE(Protobuf ${PROTOBUF_VERSION})
 
 IF(PROTOBUF_FOUND)
     EXEC_PROGRAM(${PROTOBUF_PROTOC_EXECUTABLE} ARGS --version OUTPUT_VARIABLE PROTOBUF_VERSION)

paddle/setup.py.in

@@ -16,13 +16,13 @@
 from setuptools import setup, Extension
 
 setup(name="py_paddle",
-      version="@PADDLE_VERSION@",
+      version="${PADDLE_VERSION}",
       packages=['py_paddle'],
       include_package_data=True,
       package_data={'py_paddle':['*.py','_swig_paddle.so']},
       install_requires = [
         'numpy>=1.8.0',      # The numpy is required.
-        'protobuf>=@PROTOBUF_VERSION@'    # The paddle protobuf version
+        'protobuf>=${PROTOBUF_VERSION}'    # The paddle protobuf version
       ],
       url='http://www.paddlepaddle.org/',
       license='Apache 2.0',