anchor.diff:      curl
       expat
       openssl
  -    pcre2
  +    pcre2_lib
       zlib
     ];
   
  
positive.code:   src = fetchurl {
      urls = map (n: "${n}.xz") tarballUrls;
      hashOutput = false;
      sha256 = "345056aa9b8084280b1b9fe1374d232dec05a34e8849028a20bfdb56e920dbb5";
    };
  
    nativeBuildInputs = [
  
negative.code: , perl
  , xmlto
  
  , coreutils_small
  , cpio
  , curl
  , expat
  , gawk_small
  , gnugrep
  , gnused_small
  , openssl
  , pcre2_lib
  , python
  , zlib
  }:
  