perl

[Masha Vecherkovskaya]

Oh, that's why I had a "feeling" that there is a difference.
Actually I found almost all modules I need in MacPorts database, except for thee that is.
MacPorts is more straight forward for me.
Thank you for the explanation. It looks very clear.
Thanks
On 28.02.2013, at 17:29, Alejandro Imass <aimass at yabarana.com> wrote:

> On Thu, Feb 28, 2013 at 7:06 AM, Masha Vecherkovskaya
> <mashavecher at yahoo.com> wrote:
>> It's not that I WANT to use CPAN. It was advised in Circos installation
>> instructions. That is why I asked if I have a chance to mess up everything.
>> 
> 
> When you install Perl from MacPorts you will be using that one and
> should not have any conflicts with the system-installed Perl.
> 
> You can use CPAN just fine and combine them with MacPorts Perl ports.
> Usually you should try to stick with one method or the other, but it
> really should make no difference.
> 
> I prefer to use CPAN and I use it everyday. What may happen is that
> MacPorts Perl upgrades may break your CPAN installed modules because
> the INC will no longer see them. Just re-install them and you'll be
> fine. You can later remove old versions first from MacPorts and the rm
> the old libs manually from the old paths.
> 
> To figure out which Perl you are running just type 'which perl' on the
> shell and you should get:
> 
> /opt/local/bin/perl
> 
> Which is the MacPorts Perl
> 
> To find out what the INC directories are jus type this on the shell:
> 
> perl -E 'say for @INC'
> 
> And you should get something like:
> 
> /opt/local/lib/perl5/site_perl/5.12.4/darwin-thread-multi-2level
> /opt/local/lib/perl5/site_perl/5.12.4
> /opt/local/lib/perl5/vendor_perl/5.12.4/darwin-thread-multi-2level
> /opt/local/lib/perl5/vendor_perl/5.12.4
> /opt/local/lib/perl5/5.12.4/darwin-thread-multi-2level
> /opt/local/lib/perl5/5.12.4
> /opt/local/lib/perl5/site_perl/5.12.3/darwin-thread-multi-2level
> /opt/local/lib/perl5/site_perl/5.12.3
> /opt/local/lib/perl5/site_perl
> /opt/local/lib/perl5/vendor_perl
> .
> 
> Basically when you use CPAN or the MacPorts install the libs will get
> installed into one of these directories above and as you can see some
> of them are version specific and some are not. After a MacPorts
> upgrade DO NOT remove old libs without removing the inactive Perl
> versions from MacPorts first.
> 
> port installed | grep perl
> 
> Check for inactive versions and remove them before attempting to
> remove any CPAN installed libraries from old paths that are no longer
> in use.
> 
> Cheers,
> 
> -- 
> Alejandro Imass