anchor.diff:        modules into a coherent library.  Think "a down-scaled, limited-scope CPAN
         for Guile".
       '';
  -    homepage = "https://www.nongnu.org/guile-lib/";
       license = licenses.gpl3Plus;
       maintainers = with maintainers; [ vyp ];
       platforms = platforms.gnu ++ platforms.linux;
  
positive.code:   '';
  
    meta = with lib; {
      description = "A collection of useful Guile Scheme modules";
      longDescription = ''
        guile-lib is intended as an accumulation place for pure-scheme Guile
  
negative.code: { lib
  , stdenv
  , fetchurl
  , guile
  , pkg-config
  , texinfo
  }:
  
  assert stdenv ? cc && stdenv.cc.isGNU;
  
  stdenv.mkDerivation rec {
    pname = "guile-lib";
    version = "0.2.6.1";
  
    src = fetchurl {
      url = "mirror://savannah/${pname}/${pname}-${version}.tar.gz";
      hash = "sha256-bR09DxTbnSgLjUJ9bh3sRBfd0Cv/I71Zguy24mLrPyo=";
    };
  
    nativeBuildInputs = [
      pkg-config
    ];
    buildInputs = [
      guile
      texinfo
    ];
  
    doCheck = true;
  
  