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From Steve Hay <>
Subject Re: [MP2] Nullav undeclared make error
Date Thu, 09 Aug 2012 00:31:30 GMT
On 8 August 2012 21:50, Fred Moyer <> wrote:
> On Wed, Jul 18, 2012 at 12:20 AM, Steve Hay <> wrote:
>> Fred Moyer wrote on 2012-07-18:
>>> What update needs to happen to Apache-Test? If you want to make the
>>> needed commit I can start the release process.
>> All the necessary commits are in. Commit 1362414 updated Apache-Test, so
>> I'm guessing we need to roll Apache-Test-1.38, and then update mod_perl
>> to include that to get that commit into a mod_perl release?
> A-T 1.38 is out. Do we need any other changes for 2.0.8 for this
> issue? I may review the RT list to see if I can resolve a few more
> issues.

No other changes for this are required that I'm aware of. I think
we're all good to go on this issue.

>>>> This gets mod_perl building again with a perl that doesn't have large
>>>> files support.
>>>> I still think we should also remove our usage of PERL_CORE, though...
>>> Does this affect the minimum version of Perl we can support? I
>>> remember from the last mp2 release that there was a file with
>>> httpd/perl dependencies in it that I had to update.
>> It shouldn't affect it. I did briefly break the build for 5.10.1 by
>> having used a new symbol which older perls don't have, but the buildbot
>> told me about that and I fixed it in commit 1362409. I will test with
>> 5.8 to be sure when I get a chance, but generally the changes were to
>> use NULL (rather than Nullsv et al ) a lot, so won't have any issues for
>> older perls.
>> You could start the ball rolling with a new Apache-Test release in the
>> meantime, though: that only contained one Nullsv->NULL change, so
>> definitely isn't a problem.
>> Btw, did we get anywhere with granting PAUSE perms to other committers?
>>>> From: Steve Hay []
>>>> Sent: 13 July 2012 08:23
>>>> To: Fred Moyer
>>>> Cc:;; mod_perl Dev
>>>> Subject: Re: [MP2] Nullav undeclared make error
>>>> Various perl changes removed Nullsv, Nullav etc from the core (e.g.
>>> see 24792b8dab and 3ae1b22641), but left definitions of them for when
>>> PERL_CORE is not defined, for backwards compatibility with all those
>>> CPAN modules out there which use them.
>>>> The problem here is what Nick hinted at in his comment for
>>>> 24792b8dab,
>>> namely that "obviously" nobody outside of the perl core is defining
>>> PERL_CORE... It's a rather too common and surely always wrong thing to
>>> do that, and we're guilty of it ourselves: modperl_perl_includes.h
>>> defines PERL_CORE as some kind of optimization, but only when
>>> USE_ITHREADS is defined and USE_LARGE_FILES is not. That's not a
>>> common configuration, hence we haven't seen this happen before, but
>>> the last line which I've quoted below does indeed undefine large file
>>> support, hence PERL_CORE gets defined and the definitions of Nullsv,
>>> Nullav etc are not provided.
>>>> I replaced all uses of Nullxx with (XX*)NULL in my modules some time
>>> ago in the belief that if it was good for the core then it was good
>>> for me, so I will do likewise for mod_perl unless anyone objects (or
>>> beats me to it).
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