[root@localhost DBD-ODBC-1.13]# perl Makefile.PL -o odbcdir
Useless use of private variable in void context at Makefile.PL line 431.
Overriding ODBC Directory with command line option: odbcdir

Configuring DBD::ODBC ...

>>>     Remember to actually *READ* the README file!
        And re-read it if you have any problems.

Using DBI 1.32 installed in /usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi/auto/DBI
Overriding ODBC Directory with command line option: odbcdir
ODBCHOME environment variable (odbcdir) does not refer to a directory.