anchor.diff:    '';
   
     # Install mug and msg2pdf
  -  postInstall = ''
  +  postInstall = stdenv.lib.optionalString withMug ''
       cp -v toys/msg2pdf/msg2pdf $out/bin/
       cp -v toys/mug/mug $out/bin/
     '';
  
positive.code:     sha256 = "1hwkliyb8fjrz5sw9fcisssig0jkdxzhccw0ld0l9a10q1l9mqhp";
    };
  
    buildInputs = [ sqlite pkgconfig xapian glib gmime texinfo emacs guile
                    gtk3 webkit libsoup icu ];
  
    preBuild = ''
      # Fix mu4e-builddir (set it to $out)
  
negative.code: { fetchurl, stdenv, sqlite, pkgconfig, xapian, glib, gmime, texinfo, emacs, guile
  , gtk3, webkit, libsoup, icu, withMug ? false /* doesn't build with current gtk3 */ }:
  
  stdenv.mkDerivation rec {
    version = "0.9.9.5";
  