curl --fail --retry 3 -o ndk.zip http://dl.google.com/android/repository/android-ndk-${NDK_VERSION}-`uname`-x86_64.zip
rm -Rf android-ndk-$NDK_VERSION
curl --fail --retry 3 -o ndk.zip http://dl.google.com/android/repository/android-ndk-${NDK_VERSION}-`uname`-x86_64.zip
rm -Rf android-ndk-$NDK_VERSION