diff --git a/native/dicttoolkit/Android.mk b/native/dicttoolkit/Android.mk
index 4befecf..7a44686 100644
--- a/native/dicttoolkit/Android.mk
+++ b/native/dicttoolkit/Android.mk
@@ -51,7 +51,6 @@
 LOCAL_MODULE := dicttoolkit
 LOCAL_MODULE_TAGS := optional
 
-LOCAL_CLANG := true
 LOCAL_CXX_STL := libc++
 
 include $(BUILD_HOST_EXECUTABLE)
diff --git a/native/dicttoolkit/UnitTests.mk b/native/dicttoolkit/UnitTests.mk
index da1b376..55177c0 100644
--- a/native/dicttoolkit/UnitTests.mk
+++ b/native/dicttoolkit/UnitTests.mk
@@ -31,7 +31,6 @@
 LATIN_IME_SRC_DIR := src
 LOCAL_ADDRESS_SANITIZER := true
 LOCAL_CFLAGS += -Wno-unused-parameter -Wno-unused-function
-LOCAL_CLANG := true
 LOCAL_CXX_STL := libc++
 LOCAL_C_INCLUDES += $(LOCAL_PATH)/$(LATIN_IME_DICT_TOOLKIT_SRC_DIR) \
     $(LATIN_IME_CORE_PATH)/$(LATIN_IME_CORE_SRC_DIR)
@@ -46,7 +45,6 @@
 
 LOCAL_ADDRESS_SANITIZER := true
 LOCAL_CFLAGS += -Wno-unused-parameter -Wno-unused-function
-LOCAL_CLANG := true
 LOCAL_CXX_STL := libc++
 LOCAL_C_INCLUDES += $(LOCAL_PATH)/$(LATIN_IME_DICT_TOOLKIT_SRC_DIR) \
     $(LATIN_IME_CORE_PATH)/$(LATIN_IME_CORE_SRC_DIR)
diff --git a/native/jni/Android.mk b/native/jni/Android.mk
index 6003a6f..01b32a9 100644
--- a/native/jni/Android.mk
+++ b/native/jni/Android.mk
@@ -63,7 +63,6 @@
 LOCAL_MODULE := libjni_latinime_common_static
 LOCAL_MODULE_TAGS := optional
 
-LOCAL_CLANG := true
 LOCAL_SDK_VERSION := 14
 LOCAL_NDK_STL_VARIANT := c++_static
 
@@ -87,7 +86,6 @@
 LOCAL_MODULE := libjni_latinime
 LOCAL_MODULE_TAGS := optional
 
-LOCAL_CLANG := true
 LOCAL_SDK_VERSION := 14
 LOCAL_NDK_STL_VARIANT := c++_static
 LOCAL_LDFLAGS += -ldl
diff --git a/native/jni/HostUnitTests.mk b/native/jni/HostUnitTests.mk
index 6a8bcec..6dd615c 100644
--- a/native/jni/HostUnitTests.mk
+++ b/native/jni/HostUnitTests.mk
@@ -30,7 +30,6 @@
 LATIN_IME_SRC_DIR := src
 LOCAL_ADDRESS_SANITIZER := true
 LOCAL_CFLAGS += -Wno-unused-parameter -Wno-unused-function
-LOCAL_CLANG := true
 LOCAL_CXX_STL := libc++
 LOCAL_C_INCLUDES += $(LOCAL_PATH)/$(LATIN_IME_SRC_DIR)
 LOCAL_MODULE := liblatinime_host_static_for_unittests
@@ -43,7 +42,6 @@
 LATIN_IME_TEST_SRC_DIR := tests
 LOCAL_ADDRESS_SANITIZER := true
 LOCAL_CFLAGS += -Wno-unused-parameter -Wno-unused-function
-LOCAL_CLANG := true
 LOCAL_CXX_STL := libc++
 LOCAL_C_INCLUDES += $(LOCAL_PATH)/$(LATIN_IME_SRC_DIR)
 LOCAL_MODULE := liblatinime_host_unittests
diff --git a/native/jni/TargetUnitTests.mk b/native/jni/TargetUnitTests.mk
index 69a32ed..b05cd14 100644
--- a/native/jni/TargetUnitTests.mk
+++ b/native/jni/TargetUnitTests.mk
@@ -22,7 +22,6 @@
 #################### Target library for unit test
 LATIN_IME_SRC_DIR := src
 LOCAL_CFLAGS += -Wno-unused-parameter -Wno-unused-function
-LOCAL_CLANG := true
 LOCAL_C_INCLUDES += $(LOCAL_PATH)/$(LATIN_IME_SRC_DIR)
 LOCAL_MODULE := liblatinime_target_static_for_unittests
 LOCAL_MODULE_TAGS := optional
@@ -35,7 +34,6 @@
 include $(CLEAR_VARS)
 LATIN_IME_TEST_SRC_DIR := tests
 LOCAL_CFLAGS += -Wno-unused-parameter -Wno-unused-function
-LOCAL_CLANG := true
 LOCAL_C_INCLUDES += $(LOCAL_PATH)/$(LATIN_IME_SRC_DIR)
 LOCAL_MODULE := liblatinime_target_unittests
 LOCAL_MODULE_TAGS := tests