update

phoenix/deps/cc_precompiler/lib/compilation_script/universal_binary.ex

@@ -0,0 +1,54 @@
+defmodule CCPrecompiler.UniversalBinary do
+  @moduledoc """
+  Build a universal binary on macOS
+
+  ## Example
+
+    "macos-universal" => {
+      :script, "", {CCPrecompiler.UniversalBinary, []}
+    }
+
+  """
+
+  @behaviour CCPrecompiler.CompilationScript
+
+  @impl CCPrecompiler.CompilationScript
+  def compile(_app, _version, _nif_version, _target, args, _custom_args) do
+    config = Mix.Project.config()
+    app_priv = Path.join(Mix.Project.app_path(config), "priv")
+    make_precompiler_filename = config[:make_precompiler_filename] || "nif"
+    nif_file = "#{make_precompiler_filename}.so"
+
+    compiled_bin = Path.join(app_priv, nif_file)
+    x86_64_bin = Path.join(app_priv, "#{make_precompiler_filename}_x86_64.so")
+    aarch64_bin = Path.join(app_priv, "#{make_precompiler_filename}_aarch64.so")
+
+    File.rm(compiled_bin)
+
+    # first we compile `x86_64-apple-darwin`
+    :ok = System.put_env("CC", "gcc -arch x86_64")
+    System.put_env("CXX", "gcc -arch x86_64")
+    System.put_env("CPP", "g++ -arch x86_64")
+    ElixirMake.Compiler.compile(args)
+    File.rename!(compiled_bin, x86_64_bin)
+
+    # then we compile `aarch64-apple-darwin`
+    System.put_env("CC", "gcc -arch arm64")
+    System.put_env("CXX", "gcc -arch arm64")
+    System.put_env("CPP", "g++ -arch arm64")
+    ElixirMake.Compiler.compile(args)
+    File.rename!(compiled_bin, aarch64_bin)
+
+    {_, exit_status} =
+      System.cmd("lipo", ["-create", "-output", compiled_bin, x86_64_bin, aarch64_bin])
+
+    File.rm!(x86_64_bin)
+    File.rm!(aarch64_bin)
+
+    if exit_status == 0 do
+      :ok
+    else
+      Mix.raise("Failed to create universal binary")
+    end
+  end
+end