anchor.diff:      imlib2
       libexif
       libpng
  -    xorg.libX11
  -    xorg.libXinerama
  -    xorg.libXt
  -    xorg.xproto
  +    libx11
  +    libxinerama
  +    libxt
  +    xproto
     ];
   
     preBuild = ''
  
positive.code:     };
    };
  
    meta = with stdenv.lib; {
      description = "A light-weight image viewer";
      homepage = https://feh.finalrewind.org/;
      license = licenses.mit;
  
negative.code: { stdenv
  , makeWrapper
  , fetchurl
  , lib
  
  , curl
  , imlib2
  , libexif
  , libjpeg
  , libpng
  , libx11
  , libxinerama
  , libxt
  , xproto
  }:
  
  stdenv.mkDerivation rec {
  