anchor.diff:  { stdenv
  -, asciidoc
  +, asciidoctor
   , docbook_xml_dtd_45
   , docbook-xsl
   , fetchurl
  
positive.code: 
    makeFlags = [
      "PERL_PATH=${perlPackages.perl}/bin/perl"
      "PYTHON_PATH=${python}/bin/python"
      "GNU_ROFF=1"
      "INSTALL_SYMLINKS=1"
    ];
  
  
negative.code: , gnused_small
  , openssl
  , pcre2_lib
  , python3
  , zlib
  }:
  
  