The module compiling problems due to Unicode implementation in RH9 were pretty much solved in FC1. That is, I have not had to mess with $LANG under FC1 to install modules, while this was necessary under RH9. There are still issues when reading SMB file systems, but Perl modules compile fine (as the poster already noted, his problem was in passing the tests, and the documentation actually provides a solution to that problem, which is due to file permissions).

As to solving the problem in the module's test suite, is there any reason not to move the files that have to be modified/written to /tmp, so that "nobody" can do this? Or have the test script change the permissions on the files? I suppose there's a portability issue here, since Windows essentially has no permissions, and the temp directory can be in various places on various systems. It seems silly to have a test suite that is doomed to failure on all 'nix systems and then put a "how to fix it" note in the docs...