anchor.diff:  
     configureFlags = lib.optional stdenv.hostPlatform.isMusl "--disable-backtrace";
   
  +  makeFlags = [ "udevruledir=$(out)/lib/udev/rules.d" ];
  +
     meta = with lib; {
       description = "Utilities for the btrfs filesystem";
       homepage = "https://btrfs.wiki.kernel.org/";
  
positive.code: { lib, stdenv, fetchurl, pkg-config, attr, acl, zlib, libuuid, e2fsprogs, lzo
  , asciidoc, xmlto, docbook_xml_dtd_45, docbook_xsl, libxslt, zstd, python3
  }:
  
  stdenv.mkDerivation rec {
    pname = "btrfs-progs";
    version = "5.14.1";
  
    src = fetchurl {
      url = "mirror://kernel/linux/kernel/people/kdave/btrfs-progs/btrfs-progs-v${version}.tar.xz";
      sha256 = "sha256-1UqTRlRcpG3xKOPMt31gwJfZDJO34xSZAjbijPr4xVs=";
    };
  
    nativeBuildInputs = [
  
negative.code:     python3 python3.pkgs.setuptools
    ];
  
    buildInputs = [ acl attr e2fsprogs libuuid lzo python3 systemd zlib zstd ];
  
    # for python cross-compiling
    _PYTHON_HOST_PLATFORM = stdenv.hostPlatform.config;
  