build: Add script to create Android .mk files

The create_android_makefiles script will create .mk files for node and
all of its dependencies ready to be build using Android build system.

Signed-off-by: Robert Chiras <robert.chiras@intel.com>

tools/create_android_makefiles

@@ -0,0 +1,46 @@
+#!/bin/bash
+# Run this script ONLY inside an Android build system
+# and after you ran lunch command!
+
+if [ -z "$ANDROID_BUILD_TOP" ]; then
+    echo "Run lunch before running this script!"
+    exit 1
+fi
+
+if [ -z "$1" ]; then
+    ARCH="arm"
+else
+    ARCH="$1"
+fi
+
+if [ $ARCH = "x86" ]; then
+    TARGET_ARCH="ia32"
+else
+    TARGET_ARCH="$ARCH"
+fi
+
+cd $(dirname $0)/..
+
+./configure \
+    --without-snapshot \
+    --openssl-no-asm \
+    --dest-cpu=$TARGET_ARCH \
+    --dest-os=android
+
+export GYP_GENERATORS="android"
+export GYP_GENERATOR_FLAGS="limit_to_target_all=true"
+GYP_DEFINES="target_arch=$TARGET_ARCH"
+GYP_DEFINES+=" v8_target_arch=$TARGET_ARCH"
+GYP_DEFINES+=" android_target_arch=$ARCH"
+GYP_DEFINES+=" host_os=linux OS=android"
+export GYP_DEFINES
+
+./deps/npm/node_modules/node-gyp/gyp/gyp \
+    -Icommon.gypi \
+    -Iconfig.gypi \
+    --depth=. \
+    -Dcomponent=static_library \
+    -Dlibrary=static_library \
+    node.gyp
+
+echo -e "LOCAL_PATH := \$(call my-dir)\n\ninclude \$(LOCAL_PATH)/GypAndroid.mk" > Android.mk