Perl 5.8.9 DBI/DBD::Oracle make test error

Hi,
 
I have HP-UX 11.11(64bit PA-RISC) and Perl 5.8.9.(32bit & 64bit)
The Perl I installed from depot file from www.develooper.com. I am using
gcc 3.4.3 depot file from ftp.thewrittenword.com. 
I am new to Perl. I want to install DBD::Oracle 1.24 (from CPAN) so that
I can connect to remote database Oracle 10g.
I am using Oracle Instantclient 10.2 (32bit) from Oracle download.

DBI is included in the perl 5.8.9.
There is no issue on DBD compilation and make, the problem I have is
when I run make test.

The error is:
# make test
PERL_DL_NONLAZY=1 /usr/bin/perl "-MExtUtils::Command::MM" "-e"
"test_harness(0, 'blib/lib', 'blib/arch')" t/*.t
t/01base................# Test loading DBI, DBD::Oracle and version
t/01base................ok
t/10general.............DBI
connect('','scott/tiger@(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=zmy12s
ora02)(PORT=1521))(CONNECT_DATA=(SID=CGISSRND)))',...) failed: ERROR
OCIEnvNlsCreate. Check ORACLE_HOME (Linux) env var or PATH (Windows) and
or NLS settings, permissions, etc. at t/10general.t line 35
Bailout called. Further testing stopped: Unable to connect to Oracle
(ERROR OCIEnvNlsCreate. Check ORACLE_HOME (Linux) env var or PATH
(Windows) and or NLS settings, permissions, etc.)
*** Error exit code 1

I can connect to Oracle using sqlplus manually.
DBD make test failed to connect to Oracle.
I have set ORACLE_HOME, LD_LIBRARY_PATH & SHLIB_PATH to my Oracle
Instantclient folder at /opt/instantclient_10_2. I have changed
t/10general.t under DBD setup folder to include the environment
variables but still failed. The variables are :
$ENV{ORACLE_HOME} = '/opt/instantclient_10_2';
$ENV{NLS_LANG} = '.WE8ISO8859P15';
#$ENV{NLS_LANG} = 'en_US.UTF8';
#$ENV{NLS_LANG} = 'AMERICAN_AMERICA.UTF8';
#$ENV{ORACLE_USERID} = 'scott/tiger';
$ENV{ORACLE_SID} = 'CGISSRND';
$ENV{LD_LIBRARY_PATH} = '/opt/instantclient_10_2';
$ENV{SHLIB_PATH} = '/opt/instantclient_10_2';
$ENV{LD_RUN_PATH} = '/opt/instantclient_10_2';
$ENV{TNS_ADMIN} = '/opt/instantclient_10_2/network/admin';
$ENV{LD_PRELOAD} = '/opt/java1.5/jre/lib/PA_RISC2.0/libjava.sl';
#$ENV{TWO_TASK} = 'zmy12sora02';

I manually set $dbh as listed below:

my $dbh = DBI->connect('dbi:Oracle:',
q{scott/tiger@(DESCRIPTION=(ADDRESS=(PROTO
COL=TCP)(HOST=zmy12sora02)(PORT=1521))(CONNECT_DATA=(SID=CGISSRND)))},
"");

I can ping my server's IP address.
I tried different variable settings that I can find from other threads
in Internet but failed.
Please help. Thanks.
 
regards,
Yeow