Well, I'm guessing this is an FAQ but I haven't found info on it. I constantly get locale warnings anytime I use perl (5.8.0 from serverlogistics on MacOS X 10.2 Jaguar, set to French-Canadian as default language). Here's the warning message: LC_ALL = (unset), LANG = "fr_CA" Most things seem to work correctly despite the continuous warnings. Now, this might be a problem with the serverlogistics installation (they use non-standard dirs) but I remember having a similar problem with other installations.
Anyhow, sorry if it's too obvious...