Improve efficiency of recent changes to plperl's sv2cstr().

Andrew Dunstan <andrew@dunslane.net>

Commit: 01d83ffdcae92f75dbfd41de0b4213d241edd394
Author: Andrew Dunstan <andrew@dunslane.net>
Date: 2012-01-15T21:15:04Z
Releases: 9.2.0
Improve efficiency of recent changes to plperl's sv2cstr().

Along the way, add a missing dependency in the GNUmakefile.

Alex Hunsaker, with a slight adjustment by me.

Files