* Fix a bug which prevented the second invocation of overloaded
subs governed by SelfLoader from functioning.
* Fix a bug with XS modules. MakeMaker determines where the xsubpp
preprocessor is located by adding "ExtUtils" string to the Perl's
system path. At the same time, BSDPAN has to fool MakeMaker into
thinking that the Perl's system path is elsewhere. Now we
`reverse-adjust' the notion of the Perl's system path for a
moment, so xsubpp utility is found.
This should fix the breakage with some p5- ports.
Reported by: vanilla
Submitted by: Anton Berezin <tobez@tobez.org>