Nconf install not detecting perl

Question

During my Nconf install I get

Requirements

PHP 5.0 (or higher) -> 5.3.10-1ubuntu3.4 OK
MySQL 5.0.2 (or higher) -> 5.5.24 OK
PHP-MySQL support OK
Perl 5.6 (or higher) -> FAILED

But when I check

perl -v 

This is perl 5, version 14, subversion 2 (v5.14.2) built for i686-linux-gnu-thread-multi-64int

Answer 1

This is because of the way install.php gets the version :

Take a look at INSTALL.php

function find_PERL_Version() { (line 316)
        $output = shell_exec('perl -v');
       [...]
        preg_match('/is perl, v([0-9]+[\.0-9]*)/i', $output, $version);

This script is expecting this kind of syntax :

'This is perl, v5.nn.mm' (eg v5.10.0).

Your perl application returns

'This is perl 5, version 14, subversion 2 (v5.14.2)'

A possible workaround (based on your configuration) is to replace the preg_match :

preg_match('/v([0-9]+[\.0-9]*)/i', $output, $version);

Function will then return the correct version (5.14.2) and you will be able to continue the install.