In glibc 2.3.1-8, it seems being fixed:
gotom@celesta:~> sudo locale-gen
Generating locales...
[EMAIL PROTECTED] done
gotom@celesta:~> env LC_ALL=de_DE@euro xterm
gotom@celesta:~> env LC_ALL=de_DE.ISO-8859-15@euro xterm
Warning: locale not supported by Xlib, locale set to CCould I close this bug? Regards, -- gotom -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]

