From: KOSAKI Motohiro <kosaki.motohiro@...>
Date: 2013-05-06T22:13:05+09:00
Subject: [ruby-core:54827] Re: Call setlocale(LC_ALL, "") instead of setlocale(LC_CTYPE, "")

>> Please elaborate more. Why don't you use strcoll_l()[?]
>
> I do, but it might not be available.
>
>> Why don't you use temporary locale changes such as:
>>
>> old_locale = setlocale(LC_COLLATE, NULL);
>> setlocale(LC_COLLATE, your_faborite_locale);
>>
>> strcoll(blah blah);
>>
>> setlocaleLC_COLLATE, old_locale);
>
> Because it�s not thread safe.

You can use GVL for that.