anchor.diff:  { stdenv
  +, asciidoc
  +, docbook_xml_dtd_45
  +, docbook_xsl
   , fetchurl
   , gettext
  +, libxslt
   , makeWrapper
  +, xmlto
   
   , coreutils
   , cpio
  
positive.code:   ];
  
    nativeBuildInputs = [
      gettext
      makeWrapper
    ];
  
    buildInputs = [
  
negative.code:     "sysconfdir=/etc"
    ];
  
    buildFlags = [
      "all"
      "man"
    ];
  
    installTargets = [
      "install"
      "install-man"
    ];
  
    passthru = {
      srcVerification = fetchurl rec {
  