or download this
$ PATH=$PATH:/opt/myperl/bin /opt/myperl/bin/cpan CGI::Test
[...]
Running make test
...
t/play_multi....ok 3/27Can't load '/opt/myperl/lib/5.8.9/i686-linux/au
+to/Fcntl/Fcntl.so' for module Fcntl: /opt/myperl/lib/5.8.9/i686-linux
+/auto/Fcntl/Fcntl.so: undefined symbol: PL_curpad at /opt/myperl/lib/
+5.8.9/i686-linux/XSLoader.pm line 70.
at /opt/myperl/lib/5.8.9/i686-linux/Fcntl.pm line 215
BEGIN failed--compilation aborted at /opt/myperl/lib/5.8.9/i686-linux/
+Fcntl.pm line 216.