$ perl -w dbtest.pl
install_driver(Oracle) failed: Can't locate DBD/Oracle.pm in @INC (@INC contains: /usr/lib/perl5/5.8.1/i386-linux-thread-multi /usr/lib/perl5/5.8.1 /usr/lib/perl5/site_perl/5.8.1/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.1 /usr/lib/perl5/site_perl /usr/lib/perl5/vendor_perl/5.8.1/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.1 /usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.0 /usr/lib/perl5/vendor_perl /usr/lib/perl5/5.8.1/i386-linux-thread-multi /usr/lib/perl5/5.8.1 .) at (eval 1) line 3.
Perhaps the DBD::Oracle perl module hasn't been fully installed,
or perhaps the capitalisation of 'Oracle' isn't right.
Available drivers: ExampleP, Pg, Proxy, Sponge, mysql.
 at dbtest.pl line 7

##</code><code>##


# perl Makefile.PL<BR>

Multiple copies of Driver.xst found in: /usr/lib/perl5/site_perl/5.8.1/i386-linux-thread-multi/auto/DBI /usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi/auto/DBI at Makefile.PL line 37

Using DBI 1.40 (for perl 5.008001 on i386-linux-thread-multi) installed in /usr/lib/perl5/site_perl/5.8.1/i386-linux-thread-multi/auto/DBI



 Configuring DBD::Oracle ...



>>>     Remember to actually *READ* the README file!

        Especially if you have any problems.

  The ORACLE_HOME environment variable must be set.

  It must be set to hold the path to an Oracle installation directory

  on this machine (or a machine with a compatible architecture).

  See the README.clients file for more information.

  ABORTED!