anchor.diff:  
     nativeBuildInputs = [ pkgconfig ];
     buildInputs = [ cmake wrapGAppsHook gsettings-desktop-schemas
  -                  glib gtk3 gettext libxkbfile libgnome-keyring libX11
  +                  glib gtk3 gettext libxkbfile libX11
                     freerdp libssh libgcrypt gnutls
                     pcre libdbusmenu-gtk3 libappindicator-gtk3
                     libvncserver libpthreadstubs libXdmcp libxkbcommon
                     libsecret libsoup spice-protocol spice-gtk epoxy at-spi2-core
  -                  openssl hicolor-icon-theme adwaita-icon-theme json-glib ];
  +                  openssl hicolor-icon-theme adwaita-icon-theme json-glib ]
  +  ++ optional gnomeSupport libgnome-keyring;
  +
  +  preConfigure = optionalString (!gnomeSupport) ''
  +    substituteInPlace CMakeLists.txt \
  +      --replace "add_subdirectory(remmina-plugins-gnome)" ""
  +  '';
   
     cmakeFlags = [
       "-DWITH_VTE=OFF"
  
positive.code: { stdenv, fetchFromGitLab, cmake, pkgconfig, wrapGAppsHook
  , glib, gtk3, gettext, libxkbfile, libgnome-keyring, libX11
  , freerdp, libssh, libgcrypt, gnutls, makeDesktopItem
  , pcre, libdbusmenu-gtk3, libappindicator-gtk3
  , libvncserver, libpthreadstubs, libXdmcp, libxkbcommon
  
negative.code: , openssl, gsettings-desktop-schemas, json-glib
  # The themes here are soft dependencies; only icons are missing without them.
  , hicolor-icon-theme, adwaita-icon-theme
  , gnomeSupport ? true, libgnome-keyring
  }:
  
  with stdenv.lib;
  
  let
  
  