diff --git a/mace/kernels/opencl/buffer_to_image.cc b/mace/kernels/opencl/buffer_to_image.cc
index 980354985ad06166bfc829c68c48a0e7c060a781..9fa26448e7be6d7b42297c230c8e26dc65ace0b2 100644
--- a/mace/kernels/opencl/buffer_to_image.cc
+++ b/mace/kernels/opencl/buffer_to_image.cc
@@ -87,7 +87,6 @@ void BufferToImageFunctor<DeviceType::OPENCL, T>::operator()(Tensor *buffer,
   }
   b2f_kernel.setArg(idx++, *(static_cast<cl::Image2D *>(image->buffer())));
 
-  const uint32_t kwg_size = runtime->GetKernelMaxWorkGroupSize(b2f_kernel);
   const std::vector<uint32_t> lws = {16, 64};
   cl::Event event;
   cl_int error = runtime->command_queue().enqueueNDRangeKernel(
diff --git a/tools/export_lib.sh b/tools/export_lib.sh
index 06c795f804adc1222187465dfc3a9818f3474e81..458e44a233812a16763b977794049677748adba9 100755
--- a/tools/export_lib.sh
+++ b/tools/export_lib.sh
@@ -94,10 +94,18 @@ merge_libs()
     lib_dir=${lib_dir#//}
     lib_name_prefix=lib`echo ${lib_target} | cut -d: -f2`
     bin_path="${MACE_SOURCE_DIR}/bazel-bin/${lib_dir}/${lib_name_prefix}"
-    if [ -f "${bin_path}.a" ]; then
-      bin_path="${bin_path}.a"
+    if [ x"${RUNTIME}" = x"local" ]; then
+      if [ -f "${bin_path}.pic.a" ]; then
+        bin_path="${bin_path}.pic.a"
+      else
+        bin_path="${bin_path}.pic.lo"
+      fi
     else
-      bin_path="${bin_path}.lo"
+      if [ -f "${bin_path}.a" ]; then
+        bin_path="${bin_path}.a"
+      else
+        bin_path="${bin_path}.lo"
+      fi
     fi
     echo "addlib ${bin_path}" >> ${LIBMACE_TEMP_DIR}/${CREATE_LIB_NAME}.mri || exit -1
   done