From owner-freebsd-hackers@FreeBSD.ORG  Fri Feb  9 22:51:15 2007
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Date: Fri, 9 Feb 2007 14:51:14 -0800 (PST)
From: youshi10@u.washington.edu
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Subject: Re: pkg_upgrade (was Re: pkg_add does not backtrack, does it?)
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On Sat, 10 Feb 2007, Peter Jeremy wrote:

> On 2007-Feb-09 09:43:01 -0800, youshi10@u.washington.edu wrote:
>> On Fri, 9 Feb 2007, Mike Meyer wrote:
>>> Personally, I think that's cool, but it does means it won't go into
>>> the base system. Portupgrade would probably be in the base system if
>>> it were written in a language in the base system.
>>
>> Would perl be close enough to count, or would it have to be C/C++?
>
> Perl was removed in 5.x.  Your options are shell, awk and C/C++.
>
> --
> Peter Jeremy

C++ would be it then.
-Garrett