Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:58182
Mailing-List: contact internals-help@lists.php.net; run by ezmlm
Received-SPF: pass (pb1.pair.com: domain gmail.com designates 74.125.82.54 as permitted sender)
Received-SPF: pass (google.com: domain of kris.craig@gmail.com designates 10.180.99.100 as permitted sender) client-ip=10.180.99.100;
MIME-Version: 1.0
In-Reply-To: <81cd5eb1c3b61c2eaed616b869a8e1a3.squirrel@www.l-i-e.com>
References: <CAKOpQSwMkn=0cQh9cupj-8qihVvhEEOY-kqQ0F4pLb4J1MfuZA@mail.gmail.com>
	<a0f321a49cb0932bde8bba4adc890bca.squirrel@www.l-i-e.com>
	<CAKOpQSwYa89n3s8FzytQ49i8MqUA9sFsQRh+enGzADg=h4A4xg@mail.gmail.com>
	<4F481E93.1090400@oracle.com>
	<CAKOpQSzRdjqThrTb6JeEzhnKmg_85WKejicN1rhMp49+v6cjHg@mail.gmail.com>
	<4F482524.6060106@oracle.com>
	<CAKOpQSyn8LtbBWor5ywo=hLkauSECf6shEvp9LKcrXcb9ZRnZA@mail.gmail.com>
	<81cd5eb1c3b61c2eaed616b869a8e1a3.squirrel@www.l-i-e.com>
Date: Mon, 27 Feb 2012 11:41:45 -0800
Message-ID: <CAKOpQSxgwA47qOhCbWCu9En7RdO5H1_ygpe164K8MGcrPbgBZw@mail.gmail.com>
To: Richard Lynch <ceo@l-i-e.com>
Cc: Christopher Jones <christopher.jones@oracle.com>, 
	PHP Developers Mailing List <internals@lists.php.net>
Content-Type: multipart/alternative; boundary=f46d04428e5cec66fc04b9f74c6e
Subject: Re: [PHP-DEV] [RFC] APXS LoadModule Option in configure
From: kris.craig@gmail.com (Kris Craig)

--f46d04428e5cec66fc04b9f74c6e
Content-Type: text/plain; charset=ISO-8859-1

@Richard I think, briefly, something like that was implemented.  However,
it was reverted soon after because it changed the default behavior of
configure.  This was discovered to be a problem after people realized that,
if -a is not specified, APXS will not only skip writing the LoadModule
line, but for some inexplicable reason it will also strip the existing
LoadModule line if it's already there.

I'm guessing that's probably what you're remembering.  This RFC differs in
that the default behavior of configure will remain unchanged.

@Lester Generally, this is a problem that surfaces in manual PHP builds.
You're correct in that the packaged repos tend to handle all that stuff for
you anyway.  However, these repos are rarely updated (I think CentOS and
Ubuntu are both still stuck on 5.1), so it's often necessary to build PHP
manually if you want to take advantage of the latest features.  In these
cases, being able to isolate the PHP configuration tends to make the most
sense, hence why this new option switch is necessary IMHO.

--Kris


On Mon, Feb 27, 2012 at 8:59 AM, Richard Lynch <ceo@l-i-e.com> wrote:

> On Fri, February 24, 2012 6:14 pm, Kris Craig wrote:
> > No, it happens and it's even clearly documented in APXS.
> >
> > Basically, if you specify the "-a" option in APXS, it overwrites your
> > httpd.conf (or apache.conf or whatever it is on your system) and adds
> > the
> > LoadModule line to it.  In PHP's configure script, you'll notice that
> > "-a"
> > is always specified; there's no option to use APXS without it.  As a
> > result, "make install" will always overwrite your LoadModule entry in
> > httpd.conf if APXS is enabled.  The problem occurs when you have
> > LoadModule
> > in an included .conf file already; APXS does not have the ability to
> > detect
> > that.  Therefore, a "duplicate" LoadModule entry is added to
> > httpd.conf by
> > APXS, and thus the clash occurs.  This behavior has been reproduced
> > numerous times.
> >
> >
> > I think the RFC is pretty clear on how this works.  Nobody else has
> > expressed confusion thus far.  I could clarify further but I'm not
> > sure
> > how; it's pretty straight-forward, really.  I'm not sure what may have
> > been
> > happening in your case or if perhaps you misunderstood what this RFC
> > is
> > about.  Either way, I would recommend you create a fresh Linux-based
> > build
> > environment, build Apache 2.2 and PHP 5.3.10 yourself (i.e. stay away
> > from
> > yum/apt-get), then attempt to generate an APXS-enabled Makefile using
> > PHP's
> > configure script that does not activate APXS with the "-a" option.  It
> > might also be a good idea for you to check-out the APXS documentation
> > (I
> > included a link to it on the RFC).
> >
> > Those steps should enable you to reproduce this.  =)
>
> Once upon a time, a lonnnnnng time ago, I read through the configure /
> make process, and I *thought* there was logic there to try to detect
> if your httpd.conf diverged significantly from the default, and, if
> so, it would choose NOT to add the LoadModule line, assuming you were
> a power user who had it somewhere else...
>
> I could be mis-remembering. This logic could have been removed. I
> could be hallucinating.  The logic I saw could have been doing
> something entirely difference, as I have only a vague notion of how
> configure/make works in the first place.  It could have been some
> other project.
>
> Or this could account for your different experiences, based on whether
> you "hacked" httpd.conf "enough" or started with a fresh out of the
> box one and didn't touch it until after installing PHP.
>
> ymmv
> ianal
>
> --
> brain cancer update:
> http://richardlynch.blogspot.com/search/label/brain%20tumor
> Donate:
>
> https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=FS9NLTNEEKWBE
>
>
>

--f46d04428e5cec66fc04b9f74c6e--