gtk: Don't use deprecated vte_terminal_get_adjustment Guard this with a VTE version check, since I'm not sure if this is backwards compatible. ui/gtk.c: In function ‘gd_vc_init’: ui/gtk.c:1176:5: error: ‘vte_terminal_get_adjustment’ is deprecated (declared at /usr/include/vte-2.90/vte/vtedeprecated.h:101) [-Werror=deprecated-declarations] Signed-off-by: Cole Robinson <crobinso@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>