darwin.shell_cmds: migrate to use darwin.sourceRelease

{

  lib,

  apple-sdk,

  bison,

  clang,

  libedit,

  libsbuf,

  libutil,

  libxo,

  pkg-config,

  mkAppleDerivation,

  pkg-config,

  pkgs,

}:

let

  f =

    pkgs: prev:

    if !pkgs.stdenv.hostPlatform.isDarwin || pkgs.stdenv.name == "bootstrap-stage0-stdenv-darwin" then

      prev.darwin.sourceRelease

    else

      f pkgs.stdenv.__bootPackages pkgs;

  bootstrapSourceRelease = f pkgs pkgs;

  # TODO(reckenrode): Use `sourceRelease` after migration has been merged and all releases updated to the same version.

  # nohup requires vproc_priv.h from launchd

  launchd = apple-sdk.sourceRelease "launchd";

  launchd = bootstrapSourceRelease "launchd";

in

mkAppleDerivation {

  releaseName = "shell_cmds";