From: Jeff King <peff@peff.net>
Date: Tue, 21 Apr 2009 02:00:22 GMT
Subject: Re: [PATCH RFC3.5 05/12] send-email: Improve redability and error-handling in send_message's sendmail code
Message-ID: <20090421020021.GA14479@coredump.intra.peff.net>
In-Reply-To: <7vfxg4nl0e.fsf@gitster.siamese.dyndns.org>

On Sun, Apr 19, 2009 at 06:58:57PM -0700, Junio C Hamano wrote:

> >> +		(my $pid = open my $pipe, '|-')
> >> +			// die "Could not fork to run '$smtp_server': $!\n";
> >
> > Have I already rejected this "5.10 or later" construct in the previous
> > round?  If I haven't, please consider now I have.
> 
> Sorry, I should have checked myself.  defined-or "//" is 5.8.1 or later.

I don't think that's right. perl581delta lists it in the "Future
Directions" section and says

  A new operator "//" (defined-or) _will_ be available.

(emphasis mine). I don't think it was in a stable version until 5.10
(where it is listed as "now this is available" in perl5100delta.
Which puts it squarely in the "too new to use" list.

-Peff