TWiki: Can't find/install plugins

[Jeremy Davis]

When when clicking on 'find extensions' in the TWiki appliance (v11.0):

Error accessing TWiki.org: Incomplete headers This is most likely because the LWP CPAN module isn't installed.

Reported by gurpal2000 (http://www.turnkeylinux.org/user/24333) on the forums here: http://www.turnkeylinux.org/forum/support/20101022/twiki-upgrading-latest#comment-6338

Partial fix is to install LWP (libwww-perl) Perl module: apt-get install libwww-perl

There is still an issue however (see http://www.turnkeylinux.org/forum/support/20101022/twiki-upgrading-latest#comment-6351). From my research it seems this is caused by a known TWiki bug: http://develop.twiki.org/~twiki4/cgi-bin/view/Bugs/Item6534

The bug report includes a workaround which has been reported to work in TKL:
Workaround until fixed: Remove the -T switch from twiki/bin/configure, e.g. first line should look like this:

#!/usr/bin/perl -w

[Alon Swartz (alonswartz)]

Thanks for reporting the issue, and providing workarounds. I've committed a fix and will be included in the upcoming release.
To fix currently deployed appliances the following is required:

* Install the missing dependency:
apt-get update
apt-get install libwww-perl

* Workaround insecure dependency checking in configure by removing -T from shebang
sed -i "s|\-wT|-w|" /var/www/twiki/bin/configure