Log Message:
-----------
Use SvROK(sv) rather than directly checking SvTYPE(sv) == SVt_RV in plperl.
The latter is considered unwarranted chumminess with the implementation,
and can lead to crashes with recent Perl versions.
Report and fix by Tim Bunce. Back-patch to all versions containing the
questionable coding pattern.
Modified Files:
--------------
pgsql/src/pl/plperl:
plperl.c (r1.170 -> r1.171)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/pl/plperl/plperl.c?r1=1.170&r2=1.171)