anchor.diff:      gnome3.libsoup
       gnome3.gtksourceview
     ];
  -
  -  prePatch = ''
  -    substituteInPlace ./libqalculatenasc/libtool \
  -      --replace "/bin/bash" "${bash}/bin/bash" \
  -      --replace "/bin/sed" "${gnused}/bin/sed"
  -    substituteInPlace ./libqalculatenasc/configure.inc \
  -      --replace 'ac_default_path="/sbin:/usr/sbin:/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin"' 'ac_default_path=$PATH'
  -  '';
   
     meta = with stdenv.lib; {
       description = "Do maths like a normal person";
  
positive.code:     wrapGAppsHook
      vala
      cmake
      gettext
    ];
    buildInputs = [
      libqalculate
  
negative.code: { stdenv
  , fetchFromGitHub
  , fetchpatch
  , pkgconfig
  , gtk3
  , granite
  