cpanm -v --local-lib /home/username/myperllibs   CGI
Installing /home/username/myperllibs/lib/perl5/CGI.pm
Installing /home/username/myperllibs/lib/perl5/CGI/Apache.pm
Installing /home/username/myperllibs/lib/perl5/CGI/Carp.pm
Installing /home/username/myperllibs/lib/perl5/CGI/Cookie.pm
Installing /home/username/myperllibs/lib/perl5/CGI/Fast.pm
Installing /home/username/myperllibs/lib/perl5/CGI/Pretty.pm
Installing /home/username/myperllibs/lib/perl5/CGI/Push.pm
Installing /home/username/myperllibs/lib/perl5/CGI/Switch.pm
Installing /home/username/myperllibs/lib/perl5/CGI/Util.pm
Appending installation info to /home/username/myperllibs/lib/perl5/MSWin32-x86-multi-thread/perllocal.pod

##</code><code>##

export PERL5LIB=/home/username/myperllibs/lib/perl5:$PERL5LIB
export PATH=/home/username/myperllibs/bin;$PATH

##</code><code>##

perl -V
...
  Built under msys
  Compiled at Apr 26 2011 22:23:07
  %ENV:
    PERL5LIB="/home/username/myperllibs/lib/perl5:"
    CYGWIN=""
  @INC:
    /home/username/myperllibs/lib/perl5
    /usr/lib/perl5/5.8/msys
    /usr/lib/perl5/5.8
    /usr/lib/perl5/site_perl/5.8/msys
    /usr/lib/perl5/site_perl/5.8
    /usr/lib/perl5/site_perl/5.8
    /usr/lib/perl5/vendor_perl/5.8/msys
    /usr/lib/perl5/vendor_perl/5.8
    /usr/lib/perl5/vendor_perl/5.8
    .