IIUG-IDS-9-4-UC2-linux Problems Redux

I've been having problems getting IDS-9.4 running; in particular, oninit will not start (it stops at ADM VP). With a great deal of help from Alexey Sonkin, it appears that the problem is related to the __on_exit@@GLIBC_PRIVATE function in libpthread in glibc. After a lot of swearing, rebuilding glibc for i686, and some additional investigation (I looked at the change log in glibc), I've found this in ChangeLog for glibc-2.3.4: 2004-05-01 Jakub Jelinek <jakub@redhat.com> ... __libc_pwrite64, __waitid and __pselect @@GLIBC_PRIVATE. * stdlib/Versions (libc): Remove __on_exit@@GLIBC_PRIVATE. ... And I've noted that oninit: -rwsr-sr-x 1 informix informix 10254034 2003-07-08 14:29 oninit* This leaves me with a quandary -- I'm running Slackware 10.1 with kernel 2.4.29 as my "production" system and Slackware 10.1 with kernel 2.6.10 as my "testbed" system -- what do I need do to get Informix to work? I can probably find a pre-2004 libpthread and stick it in /opt/informix/lib (if that will do it), but is that the best option? Do I need to add something to LD_LIBRARY_PATH so oninit will work? And, if I manage to get that going, where the heck did ESQL/C go? Do I need to install another package that I don't have or use the stuff from Informix 7?