darwin.system_cmds: migrate to use darwin.sourceRelease

  lib,

  AvailabilityVersions,

  apple-sdk,

  apple-sdk_15,

  fetchFromGitHub,

  libutil,

  mkAppleDerivation,

  ncurses,

  openpam,

  pkg-config,

  sourceRelease,

  stdenv,

  stdenvNoCC,

}:

let

  libdispatch = apple-sdk.sourceRelease "libdispatch"; # Has to match the version of the SDK

  Libc = apple-sdk.sourceRelease "Libc";

  libmalloc = apple-sdk.sourceRelease "libmalloc";

  OpenDirectory = apple-sdk.sourceRelease "OpenDirectory";

  libplatform = apple-sdk.sourceRelease "libplatform";

  xnu = apple-sdk_15.sourceRelease "xnu"; # Needed for `posix_spawn_secflag_options`

  # TODO(reckenrode): Remove on after the `sourceRelease` migration has been merged.

  # system_cmds does not actually require private libdispatch APIs.

  libdispatch = sourceRelease "libdispatch"; # Has to match the version of the SDK

  Libc = sourceRelease "Libc";

  libmalloc = sourceRelease "libmalloc";

  OpenDirectory = sourceRelease "OpenDirectory";

  libplatform = sourceRelease "libplatform";

  # Needed for `posix_spawn_secflag_options`

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

  xnu = fetchFromGitHub {

    owner = "apple-oss-distributions";

    repo = "xnu";

    rev = "xnu-11417.121.6";

    hash = "sha256-o4tCuCAIgAYg/Li3wTs12mVWr5C/4vbwu1zi+kJ9d6w=";

  };

  privateHeaders = stdenvNoCC.mkDerivation {

    name = "system_cmds-deps-private-headers";