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From Neil Gunton <>
Subject Re: Problem using Embperl on Debian Lenny
Date Mon, 14 Jul 2008 21:15:27 GMT

I finally tried this:

1. Install the Debian source for mod_perl and apache2.2 (previously I 
had tried building against the non-debian source tarballs)
2. Install Debian source for Embperl from Lenny
3. Build Embperl *not* using the "debian way", but rather the usual:
    perl Makefile.PL (it found the correct Debian apache sources)
    make test
    make install

Now, for some strange reason, it works - even though the binary version 
of this should really be the same, am I right??? Something must have 
gotten out of sync maybe at the object file level, which was corrected 
by the rebuild.

Note that I couldn't make this work by building tarball Embperl against 
tarball apache, or tarball Embperl against debian apache, or by using 
"the debian way" to build the Embperl source against the Debian 
apache... it only worked by building the Debian Embperl against the 
Debian apache, using the *traditional* build method. I was stunned when 
I started up apache and my test page now "just works".

This might be useful for anybody else who is trying to use Embperl 2.2 
with Apache 2.2 and mod_perl2 on the current Debian Lenny - those binary 
packages seem to be broken and need to be fixed. Building as above from 
source (note - NOT the debian build) seems to make it work.

Wow, I carried on a whole conversation with myself on a mailing list. 
Not as lonely as I thought it might be... is there *anybody* else here, 
or has Embperl died the slow death with developers?


Neil Gunton wrote:
> Ok, I tried building the Debian Embperl 2.2.0 that comes with Lenny from 
> source. I am not experienced at this. After some poking around, I turned 
> up this page on building packages:
> After cd'ing into the libembperl-perl-2.2.0 directory, I did this:
> apt-get build-dep libembperl-perl-2.2.0
> This initially gave some errors, but I tried doing apt-get install on 
> the stuff it seemed to be complaining about, and retried until it gave 
> no errors. So far so good. Next I tried building, again in the embperl 
> source dir:
> debuild -us -uc
> This did a lot of compiling and testing, and seemed to be successful, 
> but eventually stopped with the following errors:
> ...
> Manifying blib/man3/Embperl::Object.3pm
> Manifying blib/man3/Embperl::Features.3pm
> Manifying blib/man3/Embperl::Syntax::POD.3pm
> Manifying blib/man3/Embperl::TipsAndTricks.3pm
> Manifying blib/man3/Embperl::Form::Control::checkbox.3pm
> Files found in blib/arch: installing files in blib/lib into architecture 
> dependent library tree
> Writing /usr/lib/perl5/auto/Embperl/.packlist
> Appending installation info to /usr/lib/perl/5.10/perllocal.pod
> make[1]: Leaving directory `/root/libembperl-perl-2.2.0'
> install -m 755 * debian/libembperl-perl/usr/lib/cgi-bin/
> mv debian/libembperl-perl/usr/share/man/man3/*[a-z]D.3pm 
> debian/libembperl-perl/usr/share/man/de/man3/*[a-z].3pm
> mv: cannot stat `debian/libembperl-perl/usr/share/man/man3/*[a-z]D.3pm': 
> No such file or directory
> make: *** [install] Error 1
> dpkg-buildpackage: failure: fakeroot debian/rules binary gave error exit 
> status 2
> debuild: fatal error at line 1319:
> dpkg-buildpackage -rfakeroot -D -us -uc failed
> So am I building this wrong? I have fakeroot installed.
> I still don't know if this has anything to do with my original problem 
> or not. The fact that the mod_perl tests all seemed to complete ok gives 
> me some hope, but I still wonder if there isn't some very small API 
> inconsistency that has crept in somewhere, which is making Embperl barf 
> in the Apache2 environment. Again, any clues would be much appreciated.
> Thanks!
> Neil
> Neil Gunton wrote:
>> Can anybody please lend any insights here (see below)? Is anybody 
>> actually using the stock Embperl2 that comes with Debian Lenny 
>> (testing), along with stock Apache2 and mod_perl2? Are there problems 
>> with it, or am I just doing something stupid with my configuration? 
>> The error seems to imply that there may be something out of sync 
>> between Embperl and the Apache2.2 API, but it could also just be a 
>> symptom of something I'm doing wrong. Right now I am out of ideas.
>> I don't mean to be pushy, but I am going up to my datacenter in 
>> Chicago on Wednesday (round trip takes all day) to rebuild my server. 
>> I'd like to find out as soon as possible before then whether it's 
>> going to be possible to install Debian Lenny, with all its latest 
>> software, or if I'll instead have to stay with Etch. I'd much rather 
>> go to Lenny, but if there are intrinsic problems with the Debian 
>> packages of Embperl then I'll have to rethink.
>> Any help would be *much* appreciated...
>> Thanks!
>> Neil
>> Neil Gunton wrote:
>>> Hi, I've been using Embperl 1.3 for years now on Apache 1.3, and now 
>>> I'm finally trying to upgrade my websites to use the latest Embperl 
>>> which is included with Debian Lenny (testing). So that means Apache 
>>> 2.2, mod_perl  2, Embperl 2.2... I am just installing all this from 
>>> the deb packages, not from source.
>>> I'm having a problem getting Embperl 2.2.0 to run. I have a very 
>>> simple config set up in /etc/apache2/mods-available/zembperl.conf:
>>> PerlModule Embperl
>>> <FilesMatch ".*\.html$">
>>>     SetHandler  perl-script
>>>     PerlHandler Embperl::Object
>>>     Options     ExecCGI
>>> </FilesMatch>
>>> The zembperl.load is left unchanged.
>>> In /etc/apache2/sites-available/ I have:
>>> NameVirtualHost
>>> <VirtualHost>
>>>     ServerName
>>>     ServerAlias *
>>>     DocumentRoot /www-dev/vhosts/test
>>>     PerlSetEnv EMBPERL_APPNAME neilgunton_dev
>>> </VirtualHost>
>>> When I try to access, I get 500 error, with this 
>>> in the log:
>>> ERR:  24:  Error in Perl code: Can't call method "component" on an 
>>> undefined value at /usr/lib/perl5/Embperl/ line 58.\n
>>> ERR:  61: : Unknown recipe 'Embperl'
>>> Can't call method "log_file_start_pos" on an undefined value at 
>>> /usr/lib/perl5/Embperl/ line 81.
>>> Any clues on what I'm doing wrong here?
>>> Thanks!
>>> Neil
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