bug#11786: Use c_strcasecmp for portable ASCII case-insensitive comparison

[Andreas Schwab]

Eli Zaretskii <eliz@gnu.org> writes:

>> From: Andreas Schwab <schwab@linux-m68k.org>
>> Cc: Paul Eggert <eggert@cs.ucla.edu>,  Dmitry Antipov <dmantipov@yandex.ru>, 
>>  11786@debbugs.gnu.org
>> Date: Tue, 26 Jun 2012 18:25:03 +0200
>> 
>> Eli Zaretskii <eliz@gnu.org> writes:
>> 
>> > Can tolower fail for these, somehow, in a locale that uses a multibyte
>> > encoding for these strings, and if so, can you give a practical
>> > example of such a failure?
>> 
>> tolower ('I') in a turkish locale.
>
> OK, but that's not an issue with multibyte locales.

It's an issue with both tr_TR.ISO-8859-8 and tr_TR.UTF-8.  In the former
case you get a non-ASCII character, in the latter case you get an upper
case character.

Andreas.

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Andreas Schwab, schwab@linux-m68k.org
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