For your convenience, I've forked Alien::wxWidgets and 'released' an updated version that behaves satisfactory with Strawberry Perl.
https://github.com/sciurius/perl-Alien-wxWidgets/releases Extensive instructions for Strawberry users in https://github.com/sciurius/perl-Alien-wxWidgets/blob/master/Strawberry.md Bottom line is that is should now be easy to get wxPerl on Strawberry.
