I have the exact same problem on Windows XP, SP2, Perl 5.8.8, with the newest PathTools and version.

This is keeping Locale-KeyedText-v1.73.0 from installing
which is keeping SQL-Routine-SQLBuilder-v0.21.2 from installing

I may not need it so I am dropping it for now, but it is not a Solaris only problem.
Pun intended.