initdb segfault - solaris 8

The bug site is down, so I thought I would ask here:

% gmake check
[...]
1 of 76 tests failed.

% initdb -D /home/postgres/db
This database system will be initialized with username "postgres".
This user will own all the data files and must also own the server process.

Creating directory /home/postgres/db
Creating directory /home/postgres/db/base
Creating directory /home/postgres/db/global
Creating directory /home/postgres/db/pg_xlog
Creating template1 database in /home/postgres/db/base/1
DEBUG: database system was shut down at 2001-10-25 22:07:12 PDT
DEBUG: CheckPoint record at (0, 8)
DEBUG: Redo record at (0, 8); Undo record at (0, 8); Shutdown TRUE
DEBUG: NextTransactionId: 514; NextOid: 16384
DEBUG: database system is in production state
a2Creating global relations in /home/postgres/db/global
DEBUG: database system was shut down at 2001-10-25 22:07:19 PDT
DEBUG: CheckPoint record at (0, 108)
DEBUG: Redo record at (0, 108); Undo record at (0, 0); Shutdown TRUE
DEBUG: NextTransactionId: 514; NextOid: 17199
DEBUG: database system is in production state
Initializing pg_shadow.
Segmentation Fault - core dumped

initdb failed.

% gdb =postgres core
#0 0x81abdca in ValidateBinary ()
(gdb) where
#0 0x81abdca in ValidateBinary ()
#1 0x81ac024 in FindExec ()
#2 0x8152291 in PostgresMain ()
#3 0x81029b1 in main ()
#4 0x806d8c3 in _start ()

% cat /etc/release
Solaris 8 7/01 s28x_u5wos_08 INTEL
Copyright 2001 Sun Microsystems, Inc. All Rights Reserved.
Assembled 06 June 2001

Any ideas?

-Seth