[SOLVED] Slackware 64-bit 13.37, Apache 2.l2 and mod_perl

tronayne · 07-05-2011, 01:09 PM

I'm trying to install Koha, a management system for libraries (as in books and stuff, not system libraries). It requires mod_perl and I'm having a little trouble trying to figure out how to add mod_perl.

I did use the CPAN/Perl installer which is, I think, pretty much limited to Bugzilla but the stuff appears to be where it ought; i.e.,

Code:

/var/www/htdocs/bugzilla/mod_perl.pl
/usr/include/httpd/mod_perl.h
/usr/lib64/httpd/modules/mod_perl.so
/root/.cpan/build/CPAN-1.9600-4zJFot/distroprefs/GOZER.mod_perl.yml
/root/.cpan/build/SOAP-Lite-0.712-g6uW4Y/t/13-mod_perl.t

Trying to do it the simple way, I tried adding

Code:

LoadModule mod_perl lib64/httpd/modules/mod_perl.so

and that sure weren't it:

Code:

/etc/httpd/rc.d/rc.httpd start
httpd: Syntax error on line 122 of /etc/httpd/httpd.conf: Can't locate API module structure `mod_perl' in file /usr/lib64/httpd/modules/mod_perl.so: /usr/lib64/httpd/modules/mod_perl.so: undefined symbol: mod_perl

Oops.

So, do I have to recompile httpd with mod_perl included, do I have the syntax all wrong, do I simply throw my hands up in horror and abandon all hope?

Is there a better way?

Mike_M · 07-06-2011, 01:51 AM

Quote:

Originally Posted by tronayne

I'm trying to install Koha, a management system for libraries (as in books and stuff, not system libraries). It requires mod_perl and I'm having a little trouble trying to figure out how to add mod_perl.

I did use the CPAN/Perl installer which is, I think, pretty much limited to Bugzilla but the stuff appears to be where it ought; i.e.,

Code:

/var/www/htdocs/bugzilla/mod_perl.pl
/usr/include/httpd/mod_perl.h
/usr/lib64/httpd/modules/mod_perl.so
/root/.cpan/build/CPAN-1.9600-4zJFot/distroprefs/GOZER.mod_perl.yml
/root/.cpan/build/SOAP-Lite-0.712-g6uW4Y/t/13-mod_perl.t

Trying to do it the simple way, I tried adding

Code:

LoadModule mod_perl lib64/httpd/modules/mod_asis.so

and that sure weren't it:

Code:

/etc/httpd/rc.d/rc.httpd start
httpd: Syntax error on line 122 of /etc/httpd/httpd.conf: Can't locate API module structure `mod_perl' in file /usr/lib64/httpd/modules/mod_perl.so: /usr/lib64/httpd/modules/mod_perl.so: undefined symbol: mod_perl

Oops.

So, do I have to recompile httpd with mod_perl included, do I have the syntax all wrong, do I simply throw my hands up in horror and abandon all hope?

Is there a better way?

As long as your httpd is built with DSO support (dynamic modules) you do not need to (re-)build httpd with mod_perl support. Build mod_perl as a DSO and load it from httpd.conf as follows:

Code:

LoadModule perl_module modules/mod_perl.so

Restart httpd and you should be in business. Look at the end of the main error_log file for httpd and you should see a [notice] line that includes the following information (as well as other functionality supported by your daemon) after a (re)start: "mod_perl/2.0.5 ... -- resuming normal operations"

I've never installed mod_perl through CPAN. I've always built from source available from the project page, perl.apache.org. There should also be instructions on how to build it at that URL (it's quite simple).

Your mention of mod_asis and Bugzilla are puzzling. What do they have to do with mod_perl?

tronayne · 07-06-2011, 10:31 AM

Quote:

Your mention of mod_asis and Bugzilla are puzzling. What do they have to do with mod_perl?

Well, mod_asis has nothing to do with anything except for some dofus not doing copy-paste and forgetting to edit the thing, sigh.

Bugzila supports mod_perl (if you want it, I don't, don't use Perl for anything other than when I'm forced to by some application) and has a convenient installer that does all the fiddling and faddling to build it and get it installed:

Code:

perl install-module.pl mod_perl

and wait awhile. Handy if you don't want to become a Perl expert (and, for me, annoying that Bugzilla relies on Perl instead of, say, the LAMP model). No biggie one way or the other.

Anyway, thanks for the input, I added

Code:

#
# Add mod_perl
#
LoadModule perl_module lib64/httpd/modules/mod_perl.so

to /etc/httpd/httpd.conf and things appear to be working; never occurred that the correct syntax was "perl_module" instead of "mod_perl" in the LoadModule directive (even with a bunch of searching in the Apache manual and not finding).

All is well that ends.