anchor.diff:      "--sysconfdir=/etc"
       "--localstatedir=/var"
       "--without-trust-paths"
  +    "--enable-doc"
     ];
   
     installFlags = [ "exampledir=\${out}/etc/pkcs11" ];
  
positive.code: { stdenv, fetchFromGitHub, autoreconfHook, which, pkgconfig, libiconv, libffi, libtasn1 }:
  
  stdenv.mkDerivation rec {
    name = "p11-kit-${version}";
  
negative.code:   outputs = [ "out" "dev" "devdoc" ];
    outputBin = "dev";
  
    nativeBuildInputs = [ autoreconfHook which pkgconfig gtk_doc libxslt docbook_xsl ];
    buildInputs = [ libffi libtasn1 libiconv ];
  
    autoreconfPhase = ''
  