diff --git a/Android.mk b/Android.mk
index 8f1acc55a..91b2fbbb0 100644
--- a/Android.mk
+++ b/Android.mk
@@ -12,6 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-LOCAL_PATH := $(call my-dir)
-
-include $(call all-makefiles-under,$(LOCAL_PATH))
+include $(call all-subdir-makefiles)
diff --git a/java/Android.mk b/java/Android.mk
index 43168e563..36ff506bf 100644
--- a/java/Android.mk
+++ b/java/Android.mk
@@ -1,3 +1,17 @@
+# Copyright (C) 2011 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.
+
 LOCAL_PATH:= $(call my-dir)
 include $(CLEAR_VARS)
 
diff --git a/native/Android.mk b/native/Android.mk
index 5dcc1e578..5053e7d64 100644
--- a/native/Android.mk
+++ b/native/Android.mk
@@ -1,65 +1 @@
-LOCAL_PATH := $(call my-dir)
-include $(CLEAR_VARS)
-
-LOCAL_C_INCLUDES += $(LOCAL_PATH)/src
-
-LOCAL_CFLAGS += -Werror -Wall
-
-# To suppress compiler warnings for unused variables/functions used for debug features etc.
-LOCAL_CFLAGS += -Wno-unused-parameter -Wno-unused-function
-
-LOCAL_SRC_FILES := \
-    jni/com_android_inputmethod_keyboard_ProximityInfo.cpp \
-    jni/com_android_inputmethod_latin_BinaryDictionary.cpp \
-    jni/jni_common.cpp \
-    src/basechars.cpp \
-    src/bigram_dictionary.cpp \
-    src/char_utils.cpp \
-    src/correction.cpp \
-    src/dictionary.cpp \
-    src/proximity_info.cpp \
-    src/unigram_dictionary.cpp
-
-#FLAG_DBG := true
-#FLAG_DO_PROFILE := true
-
-TARGETING_UNBUNDLED_FROYO := true
-
-ifeq ($(TARGET_ARCH), x86)
-    TARGETING_UNBUNDLED_FROYO := false
-endif
-
-ifeq ($(FLAG_DBG), true)
-    TARGETING_UNBUNDLED_FROYO := false
-endif
-
-ifeq ($(FLAG_DO_PROFILE), true)
-    TARGETING_UNBUNDLED_FROYO := false
-endif
-
-ifeq ($(TARGETING_UNBUNDLED_FROYO), true)
-    LOCAL_NDK_VERSION := 4
-    LOCAL_SDK_VERSION := 8
-endif
-
-LOCAL_MODULE := libjni_latinime
-
-LOCAL_MODULE_TAGS := user
-
-# For STL
-LOCAL_C_INCLUDES += external/stlport/stlport bionic
-LOCAL_SHARED_LIBRARIES += libstlport
-
-ifeq ($(FLAG_DO_PROFILE), true)
-    $(warning Making profiling version of native library)
-    LOCAL_CFLAGS += -DFLAG_DO_PROFILE
-    LOCAL_SHARED_LIBRARIES += libcutils libutils
-else # FLAG_DO_PROFILE
-ifeq ($(FLAG_DBG), true)
-    $(warning Making debug version of native library)
-    LOCAL_CFLAGS += -DFLAG_DBG
-    LOCAL_SHARED_LIBRARIES += libcutils libutils
-endif # FLAG_DBG
-endif # FLAG_DO_PROFILE
-
-include $(BUILD_SHARED_LIBRARY)
+include $(call all-subdir-makefiles)
diff --git a/native/jni/Android.mk b/native/jni/Android.mk
new file mode 100644
index 000000000..c4adbfab4
--- /dev/null
+++ b/native/jni/Android.mk
@@ -0,0 +1,87 @@
+# Copyright (C) 2011 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.
+
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+
+LATIN_IME_SRC_DIR := ../src
+
+LOCAL_C_INCLUDES += $(LOCAL_PATH)/$(LATIN_IME_SRC_DIR)
+
+LOCAL_CFLAGS += -Werror -Wall
+
+# To suppress compiler warnings for unused variables/functions used for debug features etc.
+LOCAL_CFLAGS += -Wno-unused-parameter -Wno-unused-function
+
+LATIN_IME_JNI_SRC_FILES := \
+    com_android_inputmethod_keyboard_ProximityInfo.cpp \
+    com_android_inputmethod_latin_BinaryDictionary.cpp \
+    jni_common.cpp
+
+LATIN_IME_CORE_SRC_FILES := \
+    basechars.cpp \
+    bigram_dictionary.cpp \
+    char_utils.cpp \
+    correction.cpp \
+    dictionary.cpp \
+    proximity_info.cpp \
+    unigram_dictionary.cpp
+
+LOCAL_SRC_FILES := \
+    $(LATIN_IME_JNI_SRC_FILES) \
+    $(addprefix $(LATIN_IME_SRC_DIR)/,$(LATIN_IME_CORE_SRC_FILES))
+
+#FLAG_DBG := true
+#FLAG_DO_PROFILE := true
+
+TARGETING_UNBUNDLED_FROYO := true
+
+ifeq ($(TARGET_ARCH), x86)
+    TARGETING_UNBUNDLED_FROYO := false
+endif
+
+ifeq ($(FLAG_DBG), true)
+    TARGETING_UNBUNDLED_FROYO := false
+endif
+
+ifeq ($(FLAG_DO_PROFILE), true)
+    TARGETING_UNBUNDLED_FROYO := false
+endif
+
+ifeq ($(TARGETING_UNBUNDLED_FROYO), true)
+    LOCAL_NDK_VERSION := 4
+    LOCAL_SDK_VERSION := 8
+endif
+
+LOCAL_MODULE := libjni_latinime
+
+LOCAL_MODULE_TAGS := user
+
+# For STL
+LOCAL_C_INCLUDES += external/stlport/stlport bionic
+LOCAL_SHARED_LIBRARIES += libstlport
+
+ifeq ($(FLAG_DO_PROFILE), true)
+    $(warning Making profiling version of native library)
+    LOCAL_CFLAGS += -DFLAG_DO_PROFILE
+    LOCAL_SHARED_LIBRARIES += libcutils libutils
+else # FLAG_DO_PROFILE
+ifeq ($(FLAG_DBG), true)
+    $(warning Making debug version of native library)
+    LOCAL_CFLAGS += -DFLAG_DBG
+    LOCAL_SHARED_LIBRARIES += libcutils libutils
+endif # FLAG_DBG
+endif # FLAG_DO_PROFILE
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/native/jni/Application.mk b/native/jni/Application.mk
new file mode 100644
index 000000000..caf3b2622
--- /dev/null
+++ b/native/jni/Application.mk
@@ -0,0 +1 @@
+APP_STL := stlport_static
diff --git a/tests/Android.mk b/tests/Android.mk
index 658e8e294..6634070e9 100644
--- a/tests/Android.mk
+++ b/tests/Android.mk
@@ -1,3 +1,17 @@
+# Copyright (C) 2011 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.
+
 LOCAL_PATH:= $(call my-dir)
 include $(CLEAR_VARS)
 
diff --git a/tools/Android.mk b/tools/Android.mk
index 8f1acc55a..91b2fbbb0 100644
--- a/tools/Android.mk
+++ b/tools/Android.mk
@@ -12,6 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-LOCAL_PATH := $(call my-dir)
-
-include $(call all-makefiles-under,$(LOCAL_PATH))
+include $(call all-subdir-makefiles)