anchor.diff: -{ stdenv, lib, fetchFromGitHub, pkgconfig, uthash, asciidoc, docbook_xml_dtd_45
  +{ stdenv, lib, fetchFromGitHub, pkg-config, uthash, asciidoc, docbook_xml_dtd_45
   , docbook_xsl, libxslt, libxml2, makeWrapper, meson, ninja
   , xorgproto, libxcb ,xcbutilrenderutil, xcbutilimage, pixman, libev
   , dbus, libconfig, libdrm, libGL, pcre, libX11
  
positive.code:     libxdg_basedir
    ];
  
    NIX_CFLAGS_COMPILE = "-fno-strict-aliasing";
  
    mesonFlags = [
      "-Dbuild_docs=true"
    ];
  
    installFlags = [ "PREFIX=$(out)" ];
  
negative.code: 
    nativeBuildInputs = [
      meson ninja
      pkg-config
      uthash
      asciidoc
      docbook_xml_dtd_45
  