diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index a126054f23133a6753ec0d84e957c1c37b8521df..e49a7dc0cfec2f172044c2c01e840546aefa1e1f 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -3,6 +3,7 @@ stages:
   - pycodestyle
   - docs
   - platform_compatible_tests
+  - build_libraries
   - ndk_versions_compatible_tests
   - ops_test
   - api_test
@@ -72,6 +73,11 @@ platform_compatible_tests:
   script:
     - bazel build mace/core:core
 
+build_libraries:
+  stage: build_libraries
+  script:
+    - bash tools/build-standalone-lib.sh
+
 ndk_versions_compatible_tests:
   stage: ndk_versions_compatible_tests
   script:
diff --git a/mace/libmace/mace_runtime.cc b/mace/libmace/mace_runtime.cc
index 720b82994425905258d0c042b6d5f750004fc7a9..41eabd45f7d1d398868b6d3d71af7b15f51c9d78 100644
--- a/mace/libmace/mace_runtime.cc
+++ b/mace/libmace/mace_runtime.cc
@@ -12,8 +12,11 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#include "mace/core/macros.h"
 #include "mace/core/runtime/cpu/cpu_runtime.h"
+#ifdef MACE_ENABLE_OPENCL
 #include "mace/core/runtime/opencl/opencl_runtime.h"
+#endif  // MACE_ENABLE_OPENCL
 #include "mace/public/mace_runtime.h"
 #include "mace/utils/logging.h"
 
@@ -28,7 +31,11 @@ void SetKVStorageFactory(std::shared_ptr<KVStorageFactory> storage_factory) {
 
 // Set OpenCL Compiled Binary paths, just call once. (Not thread-safe)
 void SetOpenCLBinaryPaths(const std::vector<std::string> &paths) {
+#ifdef MACE_ENABLE_OPENCL
   OpenCLRuntime::ConfigureOpenCLBinaryPath(paths);
+#else
+  MACE_UNUSED(paths);
+#endif  // MACE_ENABLE_OPENCL
 }
 
 extern std::string kOpenCLParameterPath;
@@ -38,9 +45,14 @@ void SetOpenCLParameterPath(const std::string &path) {
 }
 
 void SetGPUHints(GPUPerfHint gpu_perf_hint, GPUPriorityHint gpu_priority_hint) {
+#ifdef MACE_ENABLE_OPENCL
   VLOG(1) << "Set GPU configurations, gpu_perf_hint: " << gpu_perf_hint
           << ", gpu_priority_hint: " << gpu_priority_hint;
   OpenCLRuntime::Configure(gpu_perf_hint, gpu_priority_hint);
+#else
+  MACE_UNUSED(gpu_perf_hint);
+  MACE_UNUSED(gpu_priority_hint);
+#endif  // MACE_ENABLE_OPENCL
 }
 
 MaceStatus SetOpenMPThreadPolicy(int num_threads_hint,