s3/packaging: Fix rpm build issues on RHEL4.
Second part of a fix for bug #7705 (RHEL samba.spec broken - and fix).
Based on patches of Jason Haar and Daniƫl van Eeden. Thanks a lot!
Karolin
Autobuild-User: Karolin Seeger <kseeger@samba.org>
Autobuild-Date: Fri Nov 18 22:13:06 CET 2011 on sn-devel-104
(cherry picked from commit
1d471ee393b0a0c1f9cc4256217acabcd98a5dbf)
(cherry picked from commit
b0e5fb69df8b66544afc29d0b3dac5454d04fe3e)
(cherry picked from commit
4efc4fc9a77fe94a9513bcbfc3a24878783ee3f1)