add mecro for opencl interface

src/io/opencl_interface.cpp

@@ -11,6 +11,7 @@ distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License. */
+#ifdef PADDLE_MOBILE_CL
 
 #include "io/opencl_interface.h"
 #include "framework/cl/cl_engine.h"
@@ -31,3 +32,4 @@ bool isInitSuccess() {
 }
 
 }  // namespace paddle_mobile
+#endif

src/io/opencl_interface.h

@@ -13,7 +13,7 @@ See the License for the specific language governing permissions and
 limitations under the License. */
 
 #pragma once
-
+#ifdef PADDLE_MOBILE_CL
 #include "CL/cl.h"
 
 namespace paddle_mobile {
@@ -22,4 +22,6 @@ cl_context getContext();
 cl_command_queue getClCommandQueue();
 bool isInitSuccess();
 
+#endif
+
 }  // namespace paddle_mobile