Bug 154994

Description Andrej Zverev 2011-02-24 08:30:09 UTC

Due to the fact that CPAN has changed layout of distros [1] (by-modules symlink is no more active) the 
entire process of forming our beautiful links in ports lost relevance and now we have the 
entropy increase.

MASTER_SITES = CPAN /../../
or
MASTER_SITES = CPAN
MASTER_SITE_SUBDIR =../../

After a brief discussion in the freebsd-perl@ mailing list has been worked out a solution[2]
which facilitates a new way to interact with CPAN. Since now the key resistance with value 
name of the author, knowing only enough to find its own distribution.
The second important thing that was required - it is to maintain backward compatibility.

To use this method you need to register in MASTER_SITE_SUBDIR keyword (CPAN :<>). For example:

MASTER_SITES = CPAN
MASTER_SITE_SUBDIR = CPAN: FLORA

Without such magic keyword we will use old way to obtaion distro. 
And this solution only work then using MASTER_SITE=CPAN.


Additional Information:
[1]
http://docs.freebsd.org/cgi/getmsg.cgi?fetch=87563+0+archive/2011/freebsd-perl/20110213.freebsd-perl
[2]
http://docs.freebsd.org/cgi/getmsg.cgi?fetch=219646+0+archive/2011/freebsd-perl/20110220.freebsd-perl

Fix: You can also find patch to apply here: http://people.freebsd.org/~az/misc/patch-Mk-bsd-sites-mk.diff.txt
It also include fix for: 
devel/p5-Class-Constant
devel/p5-Config-Model
www/p5-Jemplate
www/p5-WWW-Search-Google

which need to sure exp-run build OK.