because when the dynamic symbol lookup fails, the dummy factory returns nullptrs to code expecting valid pointers, and end up with a much harder bug to diagnose, instead of failing at the actual problem site. Change-Id: I8e4885dc192b7089e1b1716567b41420309e8984 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/163853 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>