Software error:

'Pg' is not a valid choice for $db_driver in  localconfig: Can't load '/usr/perl5/site_perl/5.8.4/sun4-solaris-64int/auto/DBD/Pg/Pg.so' for module DBD::Pg: ld.so.1: perl: fatal: libpq.so.5: open failed: No such file or directory at /usr/perl5/5.8.4/lib/sun4-solaris-64int/DynaLoader.pm line 230.
 at Bugzilla/DB/Pg.pm line 47
Compilation failed in require at Bugzilla/DB/Pg.pm line 47.
BEGIN failed--compilation aborted at Bugzilla/DB/Pg.pm line 47.
Compilation failed in require at (eval 29) line 3.

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