Sorry for pointing out the obvious, but since 5.8.5 appeared to work on another machine, and 5.8.0 had issues anyway, albeit only under certain OSen, why don't you try upgrading?

What do you mean exactly with 'when i use "use " in the perl function'? Does it segfault for any script containing even one single use statement? Are you putting a use into a sub? That shouldn't make a difference: you may just be importing syntax after all. Please clarify!