diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7877624d6971f7bb699b98f02d245d44ba8a6da7..f4b43a77562c2b8257defa9ec94975f6d7d590d9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -40,6 +40,11 @@ option(MGE_USE_SYSTEM_LIB "Build MegEngine with system libraries." OFF)
 option(MGB_WITH_FLATBUFFERS "Build MegBrain with FlatBuffers serialization support." ON)
 option(BUILD_SHARED_LIBS "Build shared libraries" ON)
 
+if (APPLE)
+    set (BUILD_SHARED_LIBS OFF)
+    message("build static for xcode framework require")
+endif()
+
 if (MGE_USE_SYSTEM_LIB)
     set (MGE_CUDA_USE_STATIC OFF)
 endif()
@@ -245,8 +250,6 @@ if(MGE_INFERENCE_ONLY)
     set(MGE_WITH_DISTRIBUTED OFF)
     message("-- Disable python module for inference only build.")
     set(MGE_WITH_PYTHON_MODULE OFF)
-    message("-- Disable tests for inference only build.")
-    set(MGE_WITH_TEST OFF)
 endif()
 
 if(MGE_WITH_DISTRIBUTED)
@@ -469,7 +472,7 @@ endif()
 set(MGB_ENABLE_TENSOR_RT ${MGE_WITH_TRT})
 
 # Inference only
-if(MGE_INFERENCE_ONLY)
+if(MGE_INFERENCE_ONLY AND NOT MGE_WITH_TEST)
     set(MGB_ENABLE_GRAD 0)
     set(MGB_BUILD_SLIM_SERVING 1)
 else()
diff --git a/dnn/test/CMakeLists.txt b/dnn/test/CMakeLists.txt
index 2a50bdd89dfeb2412b6c7271666c05b5b11df9ec..823aa88714fd8d85754aff4ba57ff96fef26854b 100644
--- a/dnn/test/CMakeLists.txt
+++ b/dnn/test/CMakeLists.txt
@@ -28,6 +28,7 @@ endif()
 
 
 add_executable(megdnn_test ${SOURCES})
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-narrowing")
 target_link_libraries(megdnn_test gtest)
 target_link_libraries(megdnn_test megdnn ${MGE_BLAS_LIBS})
 
@@ -36,7 +37,9 @@ target_include_directories(megdnn_test
         ${PROJECT_SOURCE_DIR}/third_party/midout/src
 )
 
-if(UNIX)
+if(APPLE OR ANDROID)
+    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS}")
+else()
     set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -static-libgcc -static-libstdc++")
 endif()
 
@@ -44,6 +47,8 @@ if(MGE_ENABLE_COVERAGE)
     set(CMAKE_EXE_LINKER_FLAGS  "${CMAKE_EXE_LINKER_FLAGS} --coverage")
 endif()
 
-if(UNIX)
+if(APPLE OR ANDROID)
+    target_link_libraries(megdnn_test dl)
+else()
     target_link_libraries(megdnn_test dl rt)
 endif()
diff --git a/dnn/test/arm_common/conv_bias_multi_thread.cpp b/dnn/test/arm_common/conv_bias_multi_thread.cpp
index 8eb1c033c4fda6defffa6198d8d4573ace12511e..279f9e4c324c3bb2bc74da1a83e688ac58e7993f 100644
--- a/dnn/test/arm_common/conv_bias_multi_thread.cpp
+++ b/dnn/test/arm_common/conv_bias_multi_thread.cpp
@@ -79,6 +79,7 @@ std::vector<conv_bias::TestArg> get_nchw44_conv_bias_args(
     using NLMode = param::ConvBias::NonlineMode;
 
     std::vector<TestArg> args;
+    MEGDNN_MARK_USED_VAR(no_pad);
 
     auto pack = [&](size_t n, size_t oc, size_t ic, size_t h, size_t w,
                     size_t kernel, size_t stride, size_t group, NLMode nlmode,
diff --git a/dnn/test/arm_common/matrix_mul.cpp b/dnn/test/arm_common/matrix_mul.cpp
index 73db7dcd67770b08ae2fa19cc9f63f925afd6989..582b05223e9d548bb4c08058302d33e5afdaa331 100644
--- a/dnn/test/arm_common/matrix_mul.cpp
+++ b/dnn/test/arm_common/matrix_mul.cpp
@@ -175,6 +175,7 @@ TEST_F(ARM_COMMON, QINT8x8x32_GEMV_MK4) {
     checker.set_rng(0, rng.get()).set_rng(1, rng.get());
 
     auto run = [&](size_t M, size_t K, size_t N) {
+        MEGDNN_MARK_USED_VAR(N);
         Param param;
         param.format = param::MatrixMul::Format::MK4;
         param.transposeA = false;
diff --git a/scripts/cmake-build/cross_build_android_arm_inference.sh b/scripts/cmake-build/cross_build_android_arm_inference.sh
index cf68b7d03ad5d71f3e2cf6cfebd50fd25b88ab6b..64f099dce239f39513ed45b9dc6211b4cb604622 100755
--- a/scripts/cmake-build/cross_build_android_arm_inference.sh
+++ b/scripts/cmake-build/cross_build_android_arm_inference.sh
@@ -138,7 +138,7 @@ function cmake_build() {
     make install/strip
 }
 
-build_flatc $SRC_DIR
+build_flatc $SRC_DIR $REMOVE_OLD_BUILD
 
 api_level=16
 abi="armeabi-v7a with NEON"
diff --git a/scripts/cmake-build/cross_build_ios_arm_inference.sh b/scripts/cmake-build/cross_build_ios_arm_inference.sh
index 3dcb21a6e5dbcf182920d7a607cfb83a5ec3f89f..934b694fffb4e767dafb28d097cd02e53f51dd03 100755
--- a/scripts/cmake-build/cross_build_ios_arm_inference.sh
+++ b/scripts/cmake-build/cross_build_ios_arm_inference.sh
@@ -136,7 +136,7 @@ function cmake_build() {
     make install
 }
 
-build_flatc $SRC_DIR
+build_flatc $SRC_DIR $REMOVE_OLD_BUILD
 
 # refs for ../../toolchains/ios.toolchain.cmake
 # to config this, if u want to build other,
diff --git a/scripts/cmake-build/cross_build_linux_arm_inference.sh b/scripts/cmake-build/cross_build_linux_arm_inference.sh
index 541e08fdcb9f582505430f76c1443d03c16dec96..3b1034cf23902954a4679264b7ac8add7d003266 100755
--- a/scripts/cmake-build/cross_build_linux_arm_inference.sh
+++ b/scripts/cmake-build/cross_build_linux_arm_inference.sh
@@ -128,7 +128,7 @@ function cmake_build() {
     make install/strip
 }
 
-build_flatc $SRC_DIR
+build_flatc $SRC_DIR $REMOVE_OLD_BUILD
 
 toolchain=null
 if [ "$ARCH" = "arm64-v8a" ]; then
diff --git a/scripts/cmake-build/utils/utils.sh b/scripts/cmake-build/utils/utils.sh
index 39aa8077b11fbc15bd8b90e81ecb3d2d02cb6c7f..226588fe4c7d59b6d48475b9d8d0b47d16833034 100755
--- a/scripts/cmake-build/utils/utils.sh
+++ b/scripts/cmake-build/utils/utils.sh
@@ -12,18 +12,30 @@ fi
 function build_flatc() {
     BUILD_DIR=$1/build_dir/host_flatc/build
     INSTALL_DIR=$BUILD_DIR/../install
-    if [ -e $BUILD_DIR ];then
-        echo "clean old dir: $BUILD_DIR"
-        rm -rf $BUILD_DIR
+    REMOVE_OLD_BUILD=$2
+
+    if [ $REMOVE_OLD_BUILD = "true" ]; then
+        if [ -e $BUILD_DIR ];then
+            echo "clean old dir: $BUILD_DIR"
+            rm -rf $BUILD_DIR
+        fi
+        if [ -e $INSTALL_DIR ];then
+            echo "clean old dir: $INSTALL_DIR"
+            rm -rf $INSTALL_DIR
+        fi
+    else
+        echo "strip remove old build"
+    fi
+
+    if [ ! -e $BUILD_DIR ];then
+        echo "create build: $BUILD_DIR"
+        mkdir -p $BUILD_DIR
     fi
-    if [ -e $INSTALL_DIR ];then
-        echo "clean old dir: $INSTALL_DIR"
-        rm -rf $INSTALL_DIR
+    if [ ! -e $INSTALL_DIR ];then
+        echo "create install $INSTALL_DIR"
+        mkdir -p $INSTALL_DIR
     fi
 
-    echo "create build dir"
-    mkdir -p $BUILD_DIR
-    mkdir -p $INSTALL_DIR
     cd $BUILD_DIR
     cmake -G "$MAKEFILE_TYPE Makefiles" \
         -DCMAKE_BUILD_TYPE=Release \
diff --git a/sdk/load-and-run/CMakeLists.txt b/sdk/load-and-run/CMakeLists.txt
index 486c05728dcdc521a7c4da5988b80d5e917a0f8c..159fa2d6d34a7c0ef16f75417bef0c3714baff6d 100755
--- a/sdk/load-and-run/CMakeLists.txt
+++ b/sdk/load-and-run/CMakeLists.txt
@@ -2,7 +2,7 @@ include_directories(src)
 file (GLOB_RECURSE SOURCES src/*.cpp main.cpp)
 add_executable (load_and_run  ${SOURCES})
 
-if (WIN32) 
+if (WIN32)
     # Windows does not support implicitly importing data members from DLL.
     target_link_libraries(load_and_run megbrain megdnn)
 else()
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 767715b6019ff02f73bb63e39159adcdc0820d63..45cc3d690352318f9130aa6a919e29d1fc532473 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -28,7 +28,9 @@ if(CXX_SUPPORT_WCLASS_MEMACCESS)
     endif()
 endif()
 
-if(UNIX)
+if(APPLE OR ANDROID)
+    target_link_libraries(megbrain_test dl)
+else()
     target_link_libraries(megbrain_test dl rt)
 endif()