Defines the current application locale on UNIX™ platforms.

The LC_ALL (or LANG) environment variable defines language, territory and codeset for programs running on UNIX platforms.

The codeset defined in LC_ALL is used by the runtime system to handle character strings.

It is important to set this variable properly to the character set used by your application.

If LC_ALL is not defined, LANG is used instead.

Read the UNIX man page of the setlocale() C function for more details about this variable.