Bug#163199: locale: cannot set single category

[Tobias Stefan Richter <tsr@achos.com>]

Package: libc6
Version: 2.2.5-11.2
Severity: normal

When tracking down a problem with mutt not correctly displaying
German umlauts I discovered a probably related problem with 
'locale'. I failed to test a single category to some value:

Default:

	$ locale
	LANG=C
	LC_CTYPE="C"
	LC_NUMERIC="C"
	LC_TIME="C"
	LC_COLLATE="C"
	LC_MONETARY="C"
	LC_MESSAGES="C"
	LC_PAPER="C"
	LC_NAME="C"
	LC_ADDRESS="C"
	LC_TELEPHONE="C"
	LC_MEASUREMENT="C"
	LC_IDENTIFICATION="C"
	LC_ALL=C

A test to set only LC_CTYPE:

	$ LC_CTYPE=de_DE locale
	LANG=C
	LC_CTYPE="C"
	LC_NUMERIC="C"
	LC_TIME="C"
	LC_COLLATE="C"
	LC_MONETARY="C"
	LC_MESSAGES="C"
	LC_PAPER="C"
	LC_NAME="C"
	LC_ADDRESS="C"
	LC_TELEPHONE="C"
	LC_MEASUREMENT="C"
	LC_IDENTIFICATION="C"
	LC_ALL=C

Failed. Setting LC_ALL works:

	$ LC_ALL=de_DE locale
	LANG=C
	LC_CTYPE="de_DE"
	LC_NUMERIC="de_DE"
	LC_TIME="de_DE"
	LC_COLLATE="de_DE"
	LC_MONETARY="de_DE"
	LC_MESSAGES="de_DE"
	LC_PAPER="de_DE"
	LC_NAME="de_DE"
	LC_ADDRESS="de_DE"
	LC_TELEPHONE="de_DE"
	LC_MEASUREMENT="de_DE"
	LC_IDENTIFICATION="de_DE"
	LC_ALL=de_DE

I hope I do not miss anything obvious but from my understanding
(and after reading the man page) the second test above should
have LC_CTYPE set to de_DE, leaving the others untouched.
Setting LANG is the only thing that works separately.

With mutt I had the problem that setting LC_CTYPE was not
enough to show umlauts correctly, but setting LC_ALL
(which is not what I want) is sufficient. Maybe that is
related.

-- System Information
Debian Release: 3.0
Architecture: i386
Kernel: Linux cave 2.4.19-pre7 #1 Sun Apr 21 17:14:40 CEST 2002 i686
Locale: LANG=C, LC_CTYPE=C