anchor.diff:  
     meta = with stdenv.lib; {
       description = "The simplest PDF viewer around";
  -    homepage    = https://github.com/lainsce/aesop;
  -    license     = licenses.gpl2Plus;
  +    homepage = https://github.com/lainsce/aesop;
  +    license = licenses.gpl2Plus;
       maintainers = with maintainers; [ worldofpeace ];
  -    platforms   = platforms.linux;
  +    platforms = platforms.linux;
     };
   }
  
positive.code:     ninja
      pkgconfig
      python3
      vala
      wrapGAppsHook
    ];
  
    buildInputs = [
      gnome3.libgee
      granite
      gtk3
      json-glib
      libsoup
      poppler
    ];
  
    # Fix build with vala 0.42
    patches = [
      (fetchpatch {
        url = "https://github.com/lainsce/aesop/commit/a90b3c711bd162583533370deb031c2c6254c82d.patch";
        sha256 = "1zf831g6sqq3966q0i00x3jhlbfh9blcky6pnyp5qp59hxyxy169";
      })
    ];
  
    postPatch = ''
  
negative.code: { stdenv, fetchFromGitHub, fetchpatch, vala_0_40, pkgconfig, meson, ninja, python3, granite, gtk3
  , gnome3, desktop-file-utils, json-glib, libsoup, poppler, gobjectIntrospection, wrapGAppsHook }:
  
  stdenv.mkDerivation rec {
    pname = "aesop";
    version = "1.0.7";
  
    name = "${pname}-${version}";
  
  