vcl: gtk 2.4 is checked at configure time
vcl: gtk 2.4 is checked at configure time

Change-Id: I08993551473fb9a8284e2a1ed772c99050f785d8
Reviewed-on: https://gerrit.libreoffice.org/12251
Reviewed-by: Michael Stahl <eef8671db506f9731c0438a7613853b6391ca841@redhat.com>
Tested-by: Michael Stahl <eef8671db506f9731c0438a7613853b6391ca841@redhat.com>

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core