IO:Scalar找不到了

IO:Scalar找不到了

# ls /usr/lib/perl/5.8.8/PerlIO/
encoding.pm  scalar.pm    via.pm
但在执行某个perl脚本时报错如下:
Can't locate IO/Scalar.pm in @INC (@INC contains: /home/aaa/bin /home/aaa/bin/../lib /etc/perl /usr/local/lib/perl/5.8.8 /usr/local/share/perl/5.8.8 /usr/lib/perl5 /usr/share/perl5 /usr/lib/perl/5.8 /usr/share/perl/5.8 /usr/local/lib/site_perl .) at /home/aaa/bin/../lib/Parse/DebControl.pm line 13.
BEGIN failed--compilation aborted at /home/aaa/bin/../lib/Parse/DebControl.pm line 13.

请教怎么做才好?
http://search.cpan.org/~dskoll/IO-stringy-2.110/lib/IO/Scalar.pm
cpan install IO::Scalar
谢谢楼上,perl真是强大而复杂