Glib bug: chinese display bug

Platform
1

I am trying g_error("你好"); but got “??” not “你好”
My glib version is 2.84.3
Also this: Wrong error text · Issue #5 · LesBoys43/libeventemitter · GitHub

2

Looking into the code, glib detects the console charset as non UTF-8 and converts the error text to ASCII. In my case, glib-2.84.4 detects ANSI_X3.4-1968 as console character set.

$ ./a.out 
** (process:97704): ERROR **: 08:54:59.023: ??
Trace/breakpoint trap (core dumped)

Overriding the charset using CHARSET env variable (non standard) outputs correctly.

$ CHARSET="UTF-8" ./a.out 

** (process:97741): ERROR **: 08:55:08.332: 你好
Trace/breakpoint trap (core dumped)
3

The correct solution is to use setlocale(LC_ALL, "") as documented in man setlocale

On startup of the main program, the portable "C" locale is selected as default.  A program may be made portable to all locales by calling:

     setlocale(LC_ALL, "");

after program initialization. If locale is NULL, the current locale is only queried, not modified.
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