The x_keymap.o file is required by both GTK and SDL builds,
so it must be explicitly listed as a GTK dep to ensure the
linker works when SDL is disabled

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1361805646-6425-11-git-send-email-berrange@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>