So it was deleted because it wasn't compiled by default for a long time because of not being actively maintained? But did it work?
If noone uses it and reports bugs, I suppose it may be hard to know, and hard to motivate maintaining it. Anyway, someone reported a bug: http://bugs.debian.org/486066. Apparently PERL_SYS_INIT3() and PERL_SYS_TERM() should be called before and after everything else, respectively.