diff --git a/native/dicttoolkit/UnitTests.mk b/native/dicttoolkit/UnitTests.mk
new file mode 100644
index 0000000..d568db4
--- /dev/null
+++ b/native/dicttoolkit/UnitTests.mk
@@ -0,0 +1,68 @@
+# Copyright (C) 2014 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# 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.
+
+ifeq (,$(TARGET_BUILD_APPS))
+
+LOCAL_PATH := $(call my-dir)
+
+######################################
+include $(CLEAR_VARS)
+
+LATIN_IME_CORE_PATH := $(LOCAL_PATH)/../jni
+
+LATIN_IME_DICT_TOOLKIT_SRC_DIR := src
+LATIN_IME_CORE_SRC_DIR := ../jni/src
+LATIN_DICT_TOOLKIT_TEST_SRC_DIR := tests
+
+include $(LOCAL_PATH)/NativeFileList.mk
+include $(LATIN_IME_CORE_PATH)/NativeFileList.mk
+
+# TODO: Remove -std=c++11 once it is set by default on host build.
+LATIN_IME_SRC_DIR := src
+LOCAL_ADDRESS_SANITIZER := true
+LOCAL_CFLAGS += -std=c++11 -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)
+LOCAL_MODULE := liblatinime_dicttoolkit_host_static_for_unittests
+LOCAL_MODULE_TAGS := optional
+LOCAL_SRC_FILES := \
+    $(addprefix $(LATIN_IME_DICT_TOOLKIT_SRC_DIR)/, $(LATIN_IME_DICT_TOOLKIT_SRC_FILES)) \
+    $(addprefix $(LATIN_IME_CORE_SRC_DIR)/, $(LATIN_IME_CORE_SRC_FILES))
+include $(BUILD_HOST_STATIC_LIBRARY)
+
+include $(CLEAR_VARS)
+
+# TODO: Remove -std=c++11 once it is set by default on host build.
+LOCAL_CFLAGS += -std=c++11 -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)
+LOCAL_MODULE := dicttoolkit_unittests
+LOCAL_MODULE_TAGS := tests
+LOCAL_SRC_FILES := \
+    $(addprefix $(LATIN_DICT_TOOLKIT_TEST_SRC_DIR)/, $(LATIN_IME_DICT_TOOLKIT_TEST_FILES))
+LOCAL_STATIC_LIBRARIES += liblatinime_dicttoolkit_host_static_for_unittests
+include $(BUILD_HOST_NATIVE_TEST)
+
+include $(LOCAL_PATH)/CleanupNativeFileList.mk
+
+#################### Clean up the tmp vars
+LATINIME_HOST_OSNAME :=
+LATIN_IME_SRC_DIR :=
+LATIN_IME_TEST_SRC_DIR :=
+
+endif # TARGET_BUILD_APPS