yum/apt-get update Breaks Perl CPAN

Doing an yum update or apt-get update and upgrading your system might break the PERL installation, the output I got while doing so: (after an update).

[root@desktop]# cpan

cpan shell -- CPAN exploration and modules installation (v1.7602)
ReadLine support enabled

                                                                                                                               cpan> install WWW::Mechanize
CPAN: Storable loaded ok
Going to read /root/.cpan/Metadata
  Database was generated on Mon, 15 Jun 2009 02:27:28 GMT
Going to read /root/.cpan/sources/authors/01mailrc.txt.gz
CPAN: Compress::Zlib loaded ok
Going to read /root/.cpan/sources/modules/02packages.details.txt.gz
  Database was generated on Wed, 08 Jul 2009 02:28:24 GMT
CPAN: HTTP::Date loaded ok

  There's a new CPAN.pm version (v1.9402) available!
  [Current version is v1.7602]
  You might want to try
    install Bundle::CPAN
    reload cpan
  without quitting the current session. It should be a seamless upgrade
  while we are running...

CPAN: LWP::UserAgent loaded ok
Fetching with LWP:
  ftp://ftp.jaist.ac.jp/pub/CPAN/modules/03modlist.data.gz
LWP failed with code[500] message[Errno architecture (i386-linux-thread-multi-2.6.18-53.1.14.el5pae) does not match executable architecture (i386-linux-thread-multi-2.6.18-53.el5) at /usr/lib/perl5/site_perl/5.8.8/Errno.pm line 11.
Compilation failed in require at /usr/lib/perl5/5.8.8/i386-linux-thread-multi/IO/Socket.pm line 17.
BEGIN failed--compilation aborted at /usr/lib/perl5/5.8.8/i386-linux-thread-multi/IO/Socket.pm line 17.
Compilation failed in require at /usr/lib/perl5/5.8.8/Net/FTP.pm line 18.
BEGIN failed--compilation aborted at /usr/lib/perl5/5.8.8/Net/FTP.pm line 18.
Compilation failed in require at /usr/lib/perl5/site_perl/5.8.8/LWP/Protocol/ftp.pm line 21.
]
Fetching with Net::FTP:
  ftp://ftp.jaist.ac.jp/pub/CPAN/modules/03modlist.data.gz
Can't locate object method "new" via package "Net::FTP" at /usr/lib/perl5/5.8.8/CPAN.pm line 2250.

This is due to the architecture check and differences that PERL encounters on Errno.pm module.

Fix
This can be called a fix or rather a tweak by commenting out these lines (Add #'s to the beginning) on

/usr/lib/perl5/site_perl/5.8.8/Errno.pm

"$Config{'archname'}-$Config{'osvers'}" eq
"i386-linux-thread-multi-2.6.18-53.1.14.el5pae" or
        die "Errno architecture (i386-linux-thread-multi-2.6.18-53.1.14.el5pae) does not match executable architecture ($Config{'archname'}-$Config{'osvers'})";

Change the lines to:

#"$Config{'archname'}-$Config{'osvers'}" eq
#"i386-linux-thread-multi-2.6.18-53.1.14.el5pae" or
#        die "Errno architecture (i386-linux-thread-multi-2.6.18-53.1.14.el5pae) does not match executable architecture ($Config{'archname'}-$Config{'osvers'})";