diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5d3ff0657411123c8b3e869afdd67e4fc94ecc10..59182d299be1ccc5f57e22f325b7f684fdf97866 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -40,7 +40,7 @@ option(WITH_RDMA        "Compile PaddlePaddle with RDMA support"        OFF)
 option(WITH_TIMER       "Compile PaddlePaddle with stats timer"         OFF)
 option(WITH_PROFILER    "Compile PaddlePaddle with GPU profiler"        OFF)
 option(WITH_DOC         "Compile PaddlePaddle with documentation"       OFF)
-option(ON_COVERALLS     "Compile PaddlePaddle with code coverage"       OFF)
+option(WITH_COVERAGE    "Compile PaddlePaddle with code coverage"       OFF)
 option(COVERALLS_UPLOAD "Package code coverage data to coveralls"       OFF)
 option(ON_TRAVIS        "Exclude special unit test on Travis CI"        OFF)
 ########################################################################################
diff --git a/cmake/coveralls.cmake b/cmake/coveralls.cmake
index 9be7643819efdde3f42e4d39b2849ecc17e0d9fb..ca1471cabb57c0795ee193493d2e60bb5bd9e1cc 100644
--- a/cmake/coveralls.cmake
+++ b/cmake/coveralls.cmake
@@ -61,7 +61,7 @@ function(code_coverage _COVERAGE_SRCS _COVERALLS_UPLOAD _CMAKE_SCRIPT_PATH)
     endif()
 endfunction()
 
-if(ON_COVERALLS)
+if(WITH_COVERAGE)
     set(CMAKE_BUILD_TYPE "Debug")
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -O0 -fprofile-arcs -ftest-coverage")
     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g -O0 -fprofile-arcs -ftest-coverage")
diff --git a/paddle/api/CMakeLists.txt b/paddle/api/CMakeLists.txt
index 1ca02023eb3ee24120f3e8777fbd5f85b711dee4..45f9bae9f6bdcf0ba5c7fc2e5c8d37ebfe73e6f1 100644
--- a/paddle/api/CMakeLists.txt
+++ b/paddle/api/CMakeLists.txt
@@ -26,7 +26,11 @@ FILE(GLOB PY_PADDLE_PYTHON_FILES ${PROJ_ROOT}/paddle/py_paddle/*.py)
 SET_SOURCE_FILES_PROPERTIES(Paddle.i PROPERTIES CPLUSPLUS ON)
 
 SET(CMAKE_SWIG_OUTDIR ${CMAKE_CURRENT_BINARY_DIR})
-SET(CMAKE_CXX_FLAGS "-std=c++11 -fPIC")
+SET(CMAKE_CXX_FLAGS "-std=c++11 -fPIC -Wall")
+IF(WITH_COVERAGE)
+    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -O0 -fprofile-arcs -ftest-coverage")
+ENDIF(WITH_COVERAGE)
+
 SET(SWIG_MODULE_swig_paddle_EXTRA_DEPS
     paddle_parameter
     paddle_function
@@ -44,34 +48,37 @@ SET(SWIG_MODULE_swig_paddle_EXTRA_DEPS
 )
 
 IF(APPLE)
-    SET(CMAKE_LINK_FLAGS "-undefined dynamic_lookup -Wl,-all_load")
+    SET(ARCHIVE_START "-undefined dynamic_lookup -Wl,-all_load")
 ELSE(APPLE)
+    SET(START_GROUP "-Xlinker -start-group")
+    SET(END_GROUP "-Xlinker -end-group")
     SET(ARCHIVE_START "-Wl,--whole-archive")
     SET(ARCHIVE_END "-Wl,--no-whole-archive")
 ENDIF(APPLE)
 
 SWIG_ADD_MODULE(swig_paddle python Paddle.i)
 SWIG_LINK_LIBRARIES(swig_paddle
-    ${CMAKE_LINK_FLAGS}
-    ${CMAKE_DL_LIBS}
-    ${EXTERNAL_LIBS}
-    ${CMAKE_THREAD_LIBS_INIT}
-    ${RDMA_LD_FLAGS}
-    ${RDMA_LIBS}
-    paddle_parameter
-    paddle_math
-    paddle_utils
-    paddle_pserver
-    paddle_api
-    paddle_cuda
-    paddle_trainer_lib
-    paddle_network
-    paddle_proto
+    ${START_GROUP}
     ${ARCHIVE_START}
     paddle_gserver
     paddle_function
     ${METRIC_LIBS}
     ${ARCHIVE_END}
+    paddle_pserver
+    paddle_trainer_lib
+    paddle_network
+    paddle_parameter
+    paddle_math
+    paddle_utils
+    paddle_proto
+    paddle_cuda
+    paddle_api
+    ${CMAKE_DL_LIBS}
+    ${EXTERNAL_LIBS}
+    ${CMAKE_THREAD_LIBS_INIT}
+    ${RDMA_LD_FLAGS}
+    ${RDMA_LIBS}
+    ${START_END}
 )
 
 add_custom_command(OUTPUT ${PROJ_ROOT}/paddle/dist/.timestamp
diff --git a/paddle/api/test/run_tests.sh b/paddle/api/test/run_tests.sh
index d3b74fb979ee28c0bc3f910fb3b676b46f8096ba..bcf06afa86aaa1a3151aeb966b54f69657c541e3 100755
--- a/paddle/api/test/run_tests.sh
+++ b/paddle/api/test/run_tests.sh
@@ -20,11 +20,7 @@ popd > /dev/null
 
 cd $SCRIPTPATH
 
-rm -rf .test_env
-virtualenv .test_env
-source .test_env/bin/activate
-
-python -m pip install ../../dist/*.whl
+$1 -m pip install ../../dist/*.whl
 
 test_list="testArguments.py testGradientMachine.py testMatrix.py  testVector.py testTrain.py testTrainer.py"
 
@@ -33,7 +29,7 @@ export PYTHONPATH=$PWD/../../../python/
 for fn in $test_list
 do
   echo "test $fn"
-  python $fn
+  $1 $fn
   if [ $? -ne 0 ]; then
     exit 1
   fi
diff --git a/paddle/scripts/travis/build_and_test.sh b/paddle/scripts/travis/build_and_test.sh
index db98504ba488bca033ecc3a619a7354de9b47ac3..c0b3cc294a346609f3de5b0a3307c48b8867cd5d 100755
--- a/paddle/scripts/travis/build_and_test.sh
+++ b/paddle/scripts/travis/build_and_test.sh
@@ -6,14 +6,14 @@ if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then
   export PYTHONPATH=/opt/python/2.7.12/lib/python2.7/site-packages
   export PYTHONHOME=/opt/python/2.7.12
   export PATH=/opt/python/2.7.12/bin:${PATH}
-  cmake .. -DON_TRAVIS=ON -DON_COVERALLS=ON -DCOVERALLS_UPLOAD=ON
+  cmake .. -DON_TRAVIS=ON -DWITH_COVERAGE=ON -DCOVERALLS_UPLOAD=ON
   NRPOC=`nproc`
   make -j $NPROC
   make coveralls
   sudo make install
 elif [[ "$TRAVIS_OS_NAME" == "osx" ]]; then
   export PYTHONPATH=/usr/local/lib/python2.7/site-packages
-  cmake .. -DON_TRAVIS=ON -DON_COVERALLS=ON -DCOVERALLS_UPLOAD=ON
+  cmake .. -DON_TRAVIS=ON
   NPROC=`sysctl -n hw.ncpu`
   make -j $NPROC
 fi