Is libc4 incompatible with libc6 envrionment?

[cfm@maine.com]

Re: Could libc4 programs be incompatible with libc6 environment?

We have some older libc4 programs:  Tia, kerberos4, our 
accounting packages and a whole raft of customer cgi scripts
come to mind right off.

After upgrading to libc6 AND development kernel 2.1.127 (de jour) 
we found that kadmin - our kerberos admin tool - segfaults when
it tries to update/add a password, presumably when it is
talking to the kadmind daemon at the end of the routine.

root@gray:/usr/kerberos/bin# ldd kadmin
        libc.so.4 (DLL Jump 4.5pl24) => /lib/libc.so.4
root@gray:/lib# ls -l /lib/libc.so.4*
lrwxrwxrwx   1 root     root           14 Mar 27  1997 /lib/libc.so.4 -> libc.so.4.6.27
-rwxr-xr-x   1 root     root       634880 Dec 13  1994 /lib/libc.so.4.6.27

Is there a chance that changes in network structures/kernel headers
could obsolete these older libc4 programs? 

Thanks

cfm


-- 

Christopher F. Miller, Publisher                            cfm@maine.com
MaineStreet Communications, Inc        208 Portland Road, Gray, ME  04039
1.207.657.5078  (MTRF 3-5pm)                        http://www.maine.com/