perlbrew - locale.t fails when installing perls

I'm trying to use perlbrew in order to maintain private copies of Perl, rather than doing anything that might touch system Perl.

I've installed perlbrew successfully, but my attempts to use it to install perl 5.12 and 5.14 have both failed, apparently due to some problems encountered when applying locale.t.

I'm running OSX 10.8.0. Has anyone used perlbrew on this version, and/or encountered this problem?

Thanks,

Chap