diff --git a/tools/dexpreopt/Android.mk b/tools/dexpreopt/Android.mk
new file mode 100644
index 0000000..3988387
--- /dev/null
+++ b/tools/dexpreopt/Android.mk
@@ -0,0 +1,36 @@
+#
+# Copyright (C) 2008 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.
+#
+ifneq ($(TARGET_SIMULATOR),true)
+
+LOCAL_PATH := $(my-dir)
+include $(CLEAR_VARS)
+LOCAL_PREBUILT_EXECUTABLES := dexpreopt.py
+include $(BUILD_SYSTEM)/host_prebuilt.mk
+DEXPREOPT := $(LOCAL_INSTALLED_MODULE)
+
+# The script uses some other tools; make sure that they're
+# installed along with it.
+tools := \
+	emulator$(HOST_EXECUTABLE_SUFFIX)
+
+$(DEXPREOPT): | $(addprefix $(HOST_OUT_EXECUTABLES)/,$(tools))
+
+subdir_makefiles := \
+		$(LOCAL_PATH)/dexopt-wrapper/Android.mk \
+		$(LOCAL_PATH)/afar/Android.mk
+include $(subdir_makefiles)
+
+endif # !sim