Problem with Perl5 and PostgreSQL 6.5

PostgreSQL 6.5
pgsql_perl5 version 1.8.0

bash-2.02$ perl -v
This is perl, version 5.005_03 built for i386-freebsd

Copyright 1987-1999, Larry Wall
...
bash-2.02$ perl -V
Summary of my perl5 (5.0 patchlevel 5 subversion 3) configuration:
Platform:
osname=freebsd, osvers=3.0-release, archname=i386-freebsd
uname='freebsd tnt.diff.org 3.0-release freebsd 3.0-release #0: mon jun 28
20:57:43 cest 1999 root(at)tnt(dot)diff(dot)org:usrsrcsyscompilenatdkrn3.1 i386 '
hint=recommended, useposix=true, d_sigaction=define
usethreads=undef useperlio=define d_sfio=undef
Compiler:
cc='cc', optimize='-O', gccversion=2.7.2.1
cppflags='-I/usr/local/include'
ccflags ='-I/usr/local/include'
stdchar='char', d_stdstdio=undef, usevfork=true
intsize=4, longsize=4, ptrsize=4, doublesize=8
d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
alignbytes=4, usemymalloc=n, prototype=define
Linker and Libraries:
ld='cc', ldflags ='-Wl,-E -L/usr/local/lib'
libpth=/usr/lib /usr/local/lib
libs=-lsfio -lm -lc -lcrypt
libc=/usr/lib/libc.so, so=so, useshrplib=false, libperl=libperl.a
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags=' '
cccdlflags='-DPIC -fpic', lddlflags='-shared -L/usr/local/lib'

Characteristics of this binary (from libperl):
Built under freebsd
Compiled at Jul 6 1999 00:10:37
@INC:
/usr/local/lib/perl5/5.00503/i386-freebsd
/usr/local/lib/perl5/5.00503
/usr/local/lib/perl5/site_perl/5.005/i386-freebsd
/usr/local/lib/perl5/site_perl/5.005
.