Package cannot be build because tests do not pass. This is caused by missing X11. Will be solved by running tests against Xvfb.
perl-Wx-Perl-DataWalker-0.02-10.fc15 has been submitted as an update for Fedora 15. https://admin.fedoraproject.org/updates/perl-Wx-Perl-DataWalker-0.02-10.fc15
perl-Wx-Perl-DataWalker-0.02-10.fc15 has been pushed to the Fedora 15 stable repository. If problems still persist, please make note of it in this bug report.