Curl is also needed by Paddle

For usage stats.

cmake/package.cmake

@@ -10,7 +10,7 @@ set(CPACK_DEBIAN_PACKAGE_ARCHITECTURE amd64)
 set(CPACK_DEBIAN_PACKAGE_MAINTAINER PaddlePaddle Dev <paddle-dev@baidu.com>)
 set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "Paddle")
 set(CPACK_PACKAGE_DESCRIPTION "")
-set(CPACK_DEBIAN_PACKAGE_DEPENDS "libatlas3-base, libgflags2, libgoogle-glog0, libprotobuf8, libpython2.7, libstdc++6, python-numpy, python-pip, python-pip-whl, python-protobuf")
+set(CPACK_DEBIAN_PACKAGE_DEPENDS "libatlas3-base, libgflags2, libgoogle-glog0, libprotobuf8, libpython2.7, libstdc++6, python-numpy, python-pip, python-pip-whl, python-protobuf, curl")
 set(CPACK_DEBIAN_PACKAGE_SECTION Devel)
 set(CPACK_DEBIAN_PACKAGE_CONTROL_EXTRA "${PROJ_ROOT}/paddle/scripts/deb/postinst")
 #set(CPACK_GENERATOR "DEB")