Gerbil build farm failure

I worked with Jim Nasby and we found this is the line that is failing on
Gerbil in the build farm during initdb: tqual.c, line 844 in 8.0.X
if (HeapTupleHeaderGetCmin(tuple) >= snapshot->curcid)

This particular line was last modified in 2002.  However, this was a
file that was changed as part of the VACUUM tuple chain commit:
revision 1.81.4.2date: 2005/08/25 19:45:01;  author: tgl;  state: Exp;  lines: +7 -4Back-patch fixes for problems with
VACUUMdestroying t_ctid chains too soon,and with insufficient paranoia in code that follows t_ctid links.This patch
coversthe 8.0 branch.
 

and the date of the commit to 8.0.X corresponds to the date that
failures started to happen:
http://pgbuildfarm.org/cgi-bin/show_history.pl?nm=gerbil&br=REL8_0_STABLE

--  Bruce Momjian                        |  http://candle.pha.pa.us pgman@candle.pha.pa.us               |  (610)
359-1001+  If your life is a hard drive,     |  13 Roberts Road +  Christ can be your backup.        |  Newtown Square,
Pennsylvania19073