diff --git a/Android.bp b/Android.bp
index 4c66c42..22407e0 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1,4 +1,5 @@
 subdirs = [
+    "applypatch",
     "bootloader_message",
     "edify",
     "otafault",
diff --git a/Android.mk b/Android.mk
index 132c6fe..7e34c10 100644
--- a/Android.mk
+++ b/Android.mk
@@ -258,7 +258,6 @@
 include $(BUILD_STATIC_LIBRARY)
 
 include \
-    $(LOCAL_PATH)/applypatch/Android.mk \
     $(LOCAL_PATH)/boot_control/Android.mk \
     $(LOCAL_PATH)/minadbd/Android.mk \
     $(LOCAL_PATH)/minui/Android.mk \
diff --git a/applypatch/Android.bp b/applypatch/Android.bp
new file mode 100644
index 0000000..db307df
--- /dev/null
+++ b/applypatch/Android.bp
@@ -0,0 +1,195 @@
+// Copyright (C) 2017 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.
+
+cc_defaults {
+    name: "applypatch_defaults",
+
+    cflags: [
+        "-D_FILE_OFFSET_BITS=64",
+        "-DZLIB_CONST",
+        "-Wall",
+        "-Werror",
+    ],
+
+    local_include_dirs: [
+        "include",
+    ],
+}
+
+cc_library_static {
+    name: "libapplypatch",
+
+    defaults: [
+        "applypatch_defaults",
+    ],
+
+    srcs: [
+        "applypatch.cpp",
+        "bspatch.cpp",
+        "freecache.cpp",
+        "imgpatch.cpp",
+    ],
+
+    export_include_dirs: [
+        "include",
+    ],
+
+    static_libs: [
+        "libbase",
+        "libbspatch",
+        "libbz",
+        "libcrypto",
+        "libedify",
+        "libotafault",
+        "libotautil",
+        "libz",
+    ],
+}
+
+cc_library_static {
+    name: "libapplypatch_modes",
+
+    defaults: [
+        "applypatch_defaults",
+    ],
+
+    srcs: [
+        "applypatch_modes.cpp",
+    ],
+
+    static_libs: [
+        "libapplypatch",
+        "libbase",
+        "libcrypto",
+        "libedify",
+        "libotautil",
+    ],
+}
+
+cc_binary {
+    name: "applypatch",
+
+    defaults: [
+        "applypatch_defaults",
+    ],
+
+    srcs: [
+        "applypatch_main.cpp",
+    ],
+
+    static_libs: [
+        "libapplypatch_modes",
+        "libapplypatch",
+        "libedify",
+        "libotafault",
+        "libotautil",
+        "libbspatch",
+    ],
+
+    shared_libs: [
+        "libbase",
+        "libbz",
+        "libcrypto",
+        "liblog",
+        "libz",
+        "libziparchive",
+    ],
+}
+
+cc_library_static {
+    name: "libimgdiff",
+
+    host_supported: true,
+
+    defaults: [
+        "applypatch_defaults",
+    ],
+
+    srcs: [
+        "imgdiff.cpp",
+    ],
+
+    export_include_dirs: [
+        "include",
+    ],
+
+    static_libs: [
+        "libbase",
+        "libbsdiff",
+        "libdivsufsort",
+        "libdivsufsort64",
+        "liblog",
+        "libotautil",
+        "libutils",
+        "libz",
+        "libziparchive",
+    ],
+}
+
+cc_binary_host {
+    name: "imgdiff",
+
+    srcs: [
+        "imgdiff_main.cpp",
+    ],
+
+    defaults: [
+        "applypatch_defaults",
+    ],
+
+    static_libs: [
+        "libimgdiff",
+        "libbsdiff",
+        "libdivsufsort",
+        "libdivsufsort64",
+        "libziparchive",
+        "libbase",
+        "libutils",
+        "liblog",
+        "libbz",
+        "libz",
+    ],
+}
+
+cc_library_static {
+    name: "libimgpatch",
+
+    // The host module is for recovery_host_test (Linux only).
+    host_supported: true,
+
+    defaults: [
+        "applypatch_defaults",
+    ],
+
+    srcs: [
+        "bspatch.cpp",
+        "imgpatch.cpp",
+    ],
+
+    static_libs: [
+        "libbase",
+        "libbspatch",
+        "libbz",
+        "libcrypto",
+        "libedify",
+        "libotautil",
+        "libz",
+    ],
+
+    target: {
+        darwin: {
+            enabled: false,
+        },
+    },
+}
diff --git a/applypatch/Android.mk b/applypatch/Android.mk
deleted file mode 100644
index 8fac2ff..0000000
--- a/applypatch/Android.mk
+++ /dev/null
@@ -1,196 +0,0 @@
-# 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.
-
-LOCAL_PATH := $(call my-dir)
-
-# libapplypatch (static library)
-# ===============================
-include $(CLEAR_VARS)
-LOCAL_SRC_FILES := \
-    applypatch.cpp \
-    bspatch.cpp \
-    freecache.cpp \
-    imgpatch.cpp
-LOCAL_MODULE := libapplypatch
-LOCAL_MODULE_TAGS := eng
-LOCAL_C_INCLUDES := \
-    $(LOCAL_PATH)/include
-LOCAL_EXPORT_C_INCLUDE_DIRS := \
-    $(LOCAL_PATH)/include
-LOCAL_STATIC_LIBRARIES := \
-    libedify \
-    libotafault \
-    libotautil \
-    libbase \
-    libcrypto \
-    libbspatch \
-    libbz \
-    libz
-LOCAL_CFLAGS := \
-    -DZLIB_CONST \
-    -Wall \
-    -Werror
-include $(BUILD_STATIC_LIBRARY)
-
-# libimgpatch (static library)
-# ===============================
-include $(CLEAR_VARS)
-LOCAL_SRC_FILES := \
-    bspatch.cpp \
-    imgpatch.cpp
-LOCAL_MODULE := libimgpatch
-LOCAL_C_INCLUDES := \
-    $(LOCAL_PATH)/include
-LOCAL_EXPORT_C_INCLUDE_DIRS := \
-    $(LOCAL_PATH)/include
-LOCAL_STATIC_LIBRARIES := \
-    libedify \
-    libotautil \
-    libcrypto \
-    libbspatch \
-    libbase \
-    libbz \
-    libz
-LOCAL_CFLAGS := \
-    -DZLIB_CONST \
-    -Wall \
-    -Werror
-include $(BUILD_STATIC_LIBRARY)
-
-# libimgpatch (host static library)
-# ===============================
-include $(CLEAR_VARS)
-LOCAL_SRC_FILES := \
-    bspatch.cpp \
-    imgpatch.cpp
-LOCAL_MODULE := libimgpatch
-LOCAL_MODULE_HOST_OS := linux
-LOCAL_C_INCLUDES := \
-    $(LOCAL_PATH)/include
-LOCAL_EXPORT_C_INCLUDE_DIRS := \
-    $(LOCAL_PATH)/include
-LOCAL_STATIC_LIBRARIES := \
-    libedify \
-    libotautil \
-    libcrypto \
-    libbspatch \
-    libbase \
-    libbz \
-    libz
-LOCAL_CFLAGS := \
-    -DZLIB_CONST \
-    -Wall \
-    -Werror
-include $(BUILD_HOST_STATIC_LIBRARY)
-
-# libapplypatch_modes (static library)
-# ===============================
-include $(CLEAR_VARS)
-LOCAL_SRC_FILES := \
-    applypatch_modes.cpp
-LOCAL_MODULE := libapplypatch_modes
-LOCAL_STATIC_LIBRARIES := \
-    libapplypatch \
-    libotautil \
-    libbase \
-    libedify \
-    libcrypto
-LOCAL_CFLAGS := -Wall -Werror
-include $(BUILD_STATIC_LIBRARY)
-
-# applypatch (target executable)
-# ===============================
-include $(CLEAR_VARS)
-LOCAL_SRC_FILES := applypatch_main.cpp
-LOCAL_MODULE := applypatch
-LOCAL_STATIC_LIBRARIES := \
-    libapplypatch_modes \
-    libapplypatch \
-    libedify \
-    libotafault \
-    libotautil \
-    libbspatch
-LOCAL_SHARED_LIBRARIES := \
-    libbase \
-    libbz \
-    libcrypto \
-    liblog \
-    libz \
-    libziparchive
-LOCAL_CFLAGS := -Wall -Werror
-include $(BUILD_EXECUTABLE)
-
-libimgdiff_src_files := imgdiff.cpp
-
-# libbsdiff is compiled with -D_FILE_OFFSET_BITS=64.
-libimgdiff_cflags := \
-    -Wall \
-    -Werror \
-    -D_FILE_OFFSET_BITS=64 \
-    -DZLIB_CONST
-
-libimgdiff_static_libraries := \
-    libotautil \
-    libbsdiff \
-    libdivsufsort \
-    libdivsufsort64 \
-    libziparchive \
-    libutils \
-    liblog \
-    libbase \
-    libz
-
-# libimgdiff (static library)
-# ===============================
-include $(CLEAR_VARS)
-LOCAL_SRC_FILES := \
-    $(libimgdiff_src_files)
-LOCAL_MODULE := libimgdiff
-LOCAL_CFLAGS := \
-    $(libimgdiff_cflags)
-LOCAL_STATIC_LIBRARIES := \
-    $(libimgdiff_static_libraries)
-LOCAL_C_INCLUDES := \
-    $(LOCAL_PATH)/include
-LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
-include $(BUILD_STATIC_LIBRARY)
-
-# libimgdiff (host static library)
-# ===============================
-include $(CLEAR_VARS)
-LOCAL_SRC_FILES := \
-    $(libimgdiff_src_files)
-LOCAL_MODULE := libimgdiff
-LOCAL_CFLAGS := \
-    $(libimgdiff_cflags)
-LOCAL_STATIC_LIBRARIES := \
-    $(libimgdiff_static_libraries)
-LOCAL_C_INCLUDES := \
-    $(LOCAL_PATH)/include
-LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
-include $(BUILD_HOST_STATIC_LIBRARY)
-
-# imgdiff (host static executable)
-# ===============================
-include $(CLEAR_VARS)
-LOCAL_SRC_FILES := imgdiff_main.cpp
-LOCAL_MODULE := imgdiff
-LOCAL_CFLAGS := -Wall -Werror
-LOCAL_STATIC_LIBRARIES := \
-    libimgdiff \
-    $(libimgdiff_static_libraries) \
-    libbz
-LOCAL_C_INCLUDES := \
-    $(LOCAL_PATH)/include
-include $(BUILD_HOST_EXECUTABLE)