No can do. pkgutils won't install. Have to wait.
Only for testing purpose, manually editing the file /var/lib/rpm/filetriggers/ldconfig.script should be enough.
This change should allow to test the installation of new packages, that, after the change, should run without the ldconfig (not found) issue, no matter if "su", "su -", "gksu", "gksu -l", "kdesu", or "ktsuss" is used.
AS