One cross-compile target. env_fn is invoked at build time so it can read live :code.lib_dir(:elixir) / NDK version / etc.
env_fn
:code.lib_dir(:elixir)
@type t() :: %MobDev.Release.OpenSSL.Target{ configure_target: String.t(), default_prefix: Path.t(), env_fn: (keyword() -> [{String.t(), String.t()}]), extra_configure_args: [String.t()], id: :android_arm64 | :android_arm32 | :ios_sim | :ios_device }