On Thu, 22 Oct 2015, Joseph Myers wrote: > multibyte characters in that output). (If an explicit character set is > specified for LC_MESSAGES that's different from that in LC_CTYPE, you > probably have a broken environment - multibyte characters need to have a
The specific wording in POSIX that justifies this is: "If different character sets are used by the locale categories, the results achieved by an application utilizing these categories are undefined.". http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap07.html So using nl_langinfo (CODESET) (and thereby LC_CTYPE) to determine output encoding is fully POSIX-conforming, and while there are several ways in which a "c99" wrapper needs to adjust for differences between the "gcc" driver interface and the POSIX "c99" interface, this is not one of them. -- Joseph S. Myers jos...@codesourcery.com
