anchor.diff:  { aspell, audiofile
   , gsmakeDerivation
   , cups
  -, fetchurl, fetchpatch
  +, fetchzip
   , gmp, gnutls
   , libffi, binutils-unwrapped
   , libjpeg, libtiff, libpng, giflib
  
positive.code: , pkg-config, portaudio
  , libiberty
  }:
  let
    version = "1.27.0";
  in
  gsmakeDerivation {
    name = "gnustep-base-${version}";
    src = fetchurl {
      url = "ftp://ftp.gnustep.org/pub/gnustep/core/gnustep-base-${version}.tar.gz";
      sha256 = "10xjrv5d443wzll6lf9y65p6v9kvx7xxklhsm1j05y93vwgzl0w8";
    };
    nativeBuildInputs = [ pkg-config ];
    propagatedBuildInputs = [
  
negative.code:   ];
    patches = [
      ./fixup-paths.patch
    ];
  
    meta = {
      description = "An implementation of AppKit and Foundation libraries of OPENSTEP and Cocoa";
      changelog = "https://github.com/gnustep/libs-base/releases/tag/base-${builtins.replaceStrings [ "." ] [ "_" ] version}";
    };
  }
  