dual-1-25:~/.cpan/build $ perl -MCPAN -e "shell"
IO object version 1.22 does not match bootstrap parameter 1.23 at /System/Library/Perl/5.8.8/darwin-thread-multi-2level/XSLoader.pm line 97
Compilation failed in require at /System/Library/Perl/5.8.8/darwin-thread-multi-2level/IO/Handle.pm line 263.