anchor.diff:      })
     ];
   
  -  nativeBuildInputs = [ python re2c ] ++ optionals buildDocs [ asciidoc docbook_xml_dtd_45 docbook_xsl libxslt.bin ];
  +  nativeBuildInputs = [ python3 re2c ] ++ optionals buildDocs [ asciidoc docbook_xml_dtd_45 docbook_xsl libxslt.bin ];
   
     buildPhase = ''
       python configure.py --bootstrap
  
positive.code:       sha256 = "0zsg46jflsh644jccrcgyfalr7fkzrv041kyi8644nyk923gcrl9";
      })
      # https://github.com/ninja-build/ninja/issues/1510 - fix w/musl, possibly BSDs?
      # 
      (fetchpatch {
        name = "fix-issue-1510.patch";
        url = https://github.com/makepost/ninja/commit/567815df38a2ff54ad7478a90bd75c91e434236a.patch;
  
negative.code: { stdenv, fetchFromGitHub, fetchpatch, python3, buildDocs ? true, asciidoc, docbook_xml_dtd_45, docbook_xsl, libxslt, re2c }:
  
  with stdenv.lib;
  
  