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Posted to modperl@perl.apache.org by Tim Sweetman <ti...@aldigital.co.uk> on 2001/04/10 17:33:08 UTC
@INC and mod_perl - PerlSetEnv PERL5LIB ... doesn't seem to work
Hi,
According to this document,
http://thingy.kcilink.com/modperlguide/porting/_INC_and_mod_perl.html
you can add directories to @INC by putting
PerlSetEnv PERL5LIB /home/httpd/perl
in your Apache conf. file (that is unless you're using taint checking,
in which case it will be ignored...?)
Not using taint checking, and with Apache 1.3.12, mod_Perl 1.24, I find
that this behaves exactly the same as SetEnv PERL5LIB, ie. works for the
first page request, after which @INC reverts to its state without the
directories listed in SetEnv.
A previous approach, which does appear to work, is to set PERL5LIB
*before* starting Apache
ie. PERL5LIB=/usr/lib/foo httpsd ...
Can anyone shed any light on this?
Thanks in advance,
--
Tim Sweetman
A L Digital
"Who knows where the Tim goes?" --- Fairport Convention
Re: @INC and mod_perl - PerlSetEnv PERL5LIB ... doesn't seem to work
Posted by Roger Espel Llima <ro...@iagora.net>.
I Told You So <ti...@aldigital.co.uk> wrote:
> I'd also appreciate knowing if the "set the env. variable before
> Apache run" approach (ie. PERL5LIB=/usr/lib/foo httpsd ...) works,
> or whether this is going to be blown out of the water by
> subsequent mod_perl versions (though this may be currently
> unknowable, or known by very few people). :)
It works for me at least. I'm PERL5LIB to keep several versions of
mod_perl's modules on the same system; the first one I installed
(mod_perl 1.21) installed itself under the default location
(/usr/lib/perl5/site_perl/Apache), and then when I needed to setup
another Apache with a more recent mod_perl, I prepared it with
perl Makefile.PL APACHE_SRC=../apache_1.3.19/src DO_HTTPD=1 USE_APACI=1 \
PREP_HTTPD=1 EVERYTHING=1 \
LIB=/usr/local/new-apache/perl-lib
and then I added the line
PERL5LIB=/usr/local/ssl-apache/perl-lib ; export PERL5LIB
to /usr/local/new-apache/bin/apachectl
Looking at /perl-status's Modules page, @INC looks good.
--
Roger Espel Llima, roger@iagora.net
http://www.iagora.com/~espel/index.html
Re: @INC and mod_perl - PerlSetEnv PERL5LIB ... doesn't seem to work
Posted by I Told You So <ti...@aldigital.co.uk>.
> Vivek Khera wrote:
> >
> > >>>>> "TS" == Tim Sweetman <ti...@aldigital.co.uk> writes:
> >
> > TS> you can add directories to @INC by putting
> >
> > TS> PerlSetEnv PERL5LIB /home/httpd/perl
Thanks Vivek, but I was after clarification of whether this was a bug
(to be fixed) or inaccurate docs (also to be fixed). I'd also appreciate
knowing if the "set the env. variable before Apache run"
approach (ie. PERL5LIB=/usr/lib/foo httpsd ...) works, or whether this
is going to be blown out of the water by subsequent mod_perl versions
(though this may be currently unknowable, or known by very few people).
:)
On a related note (preloading in startup scripts), presumably packages
which use AutoLoader/SelfLoader will do a fairly half-baked job of
preloading. Should this pair have some kind of compile() functionality?
(Not saying I'd implement it, but IF we turn out to need it, and nobody
else has, and people think it's a good idea...)
Cheers
--
Tim Sweetman
A L Digital
Re: @INC and mod_perl - PerlSetEnv PERL5LIB ... doesn't seem to work
Posted by "Keith G. Murphy" <ke...@mindspring.com>.
Stas Bekman wrote:
>
> On Wed, 11 Apr 2001, Keith G. Murphy wrote:
>
> > Vivek Khera wrote:
> > >
> > > >>>>> "TS" == Tim Sweetman <ti...@aldigital.co.uk> writes:
> > >
> > > TS> you can add directories to @INC by putting
> > >
> > > TS> PerlSetEnv PERL5LIB /home/httpd/perl
> > >
> > > Just use the second method in the guide. ie, use lib '/path/to/lib'
> > > in a startup script.
> > >
> > I request that the guide be changed, since apparently the 'PerlSetEnv'
> > way hasn't worked properly for some time. Never has for me, anyway.
>
> Do you have the taint mode turned on? I think at some point mod_perl
> ignores PERL5LIB settings then. Can you confirm that?
>
Ah, I just noticed something else. If I *am* running a startup script
that 'use's modules that are in my PERL5LIB, I must do 'use lib', or the
script fails to load them. So 'PerlSetEnv PERL5LIB' is pretty much
useless (because not sufficient and redundant to 'use lib') in this
case.
That's probably normal and to-be-expected, but it would be nice if it
were actually documented.
Re: @INC and mod_perl - PerlSetEnv PERL5LIB ... doesn't seem to work
Posted by "Keith G. Murphy" <ke...@mindspring.com>.
Stas Bekman wrote:
>
> On Wed, 11 Apr 2001, Keith G. Murphy wrote:
>
> > Vivek Khera wrote:
> > >
> > > >>>>> "TS" == Tim Sweetman <ti...@aldigital.co.uk> writes:
> > >
> > > TS> you can add directories to @INC by putting
> > >
> > > TS> PerlSetEnv PERL5LIB /home/httpd/perl
> > >
> > > Just use the second method in the guide. ie, use lib '/path/to/lib'
> > > in a startup script.
> > >
> > I request that the guide be changed, since apparently the 'PerlSetEnv'
> > way hasn't worked properly for some time. Never has for me, anyway.
>
> Do you have the taint mode turned on? I think at some point mod_perl
> ignores PERL5LIB settings then. Can you confirm that?
>
It seems to be working like a charm for me now. :-)
I regret the false imputation...
The root of my misunderstanding was that I did not realize that when I
would start apache by hand, it was getting PERL5LIB from my shell
environment.
Then, when the system would reboot, and start Apache, it didn't have it!
So I probably just had things misconfigured (like using 'SetEnv' instead
of 'PerlSetEnv'), and mistakenly concluded that 'use lib' was the only
thing that works reliably.
I could never really debug the problem properly, since everything always
worked by hand.
Then when I saw Tim's post, it seemed to confirm what I already thought
I knew.
Shows what assuming will do. Hee-haw. ;-)
Re: @INC and mod_perl - PerlSetEnv PERL5LIB ... doesn't seem to work
Posted by Stas Bekman <st...@stason.org>.
On Wed, 11 Apr 2001, Keith G. Murphy wrote:
> Vivek Khera wrote:
> >
> > >>>>> "TS" == Tim Sweetman <ti...@aldigital.co.uk> writes:
> >
> > TS> you can add directories to @INC by putting
> >
> > TS> PerlSetEnv PERL5LIB /home/httpd/perl
> >
> > Just use the second method in the guide. ie, use lib '/path/to/lib'
> > in a startup script.
> >
> I request that the guide be changed, since apparently the 'PerlSetEnv'
> way hasn't worked properly for some time. Never has for me, anyway.
Do you have the taint mode turned on? I think at some point mod_perl
ignores PERL5LIB settings then. Can you confirm that?
_____________________________________________________________________
Stas Bekman JAm_pH -- Just Another mod_perl Hacker
http://stason.org/ mod_perl Guide http://perl.apache.org/guide
mailto:stas@stason.org http://apachetoday.com http://logilune.com/
http://singlesheaven.com http://perl.apache.org http://perlmonth.com/
Re: @INC and mod_perl - PerlSetEnv PERL5LIB ... doesn't seem to work
Posted by "Keith G. Murphy" <ke...@mindspring.com>.
Vivek Khera wrote:
>
> >>>>> "TS" == Tim Sweetman <ti...@aldigital.co.uk> writes:
>
> TS> you can add directories to @INC by putting
>
> TS> PerlSetEnv PERL5LIB /home/httpd/perl
>
> Just use the second method in the guide. ie, use lib '/path/to/lib'
> in a startup script.
>
I request that the guide be changed, since apparently the 'PerlSetEnv'
way hasn't worked properly for some time. Never has for me, anyway.
Re: @INC and mod_perl - PerlSetEnv PERL5LIB ... doesn't seem to work
Posted by Vivek Khera <kh...@kciLink.com>.
>>>>> "TS" == Tim Sweetman <ti...@aldigital.co.uk> writes:
TS> you can add directories to @INC by putting
TS> PerlSetEnv PERL5LIB /home/httpd/perl
Just use the second method in the guide. ie, use lib '/path/to/lib'
in a startup script.
--
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Vivek Khera, Ph.D. Khera Communications, Inc.
Internet: khera@kciLink.com Rockville, MD +1-240-453-8497
AIM: vivekkhera Y!: vivek_khera http://www.khera.org/~vivek/