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c801709ed5
* libc/locale/locale.c (lc_ctype_cjk_lang): New static int. (loadlocale): In case of setting LC_CTYPE, set lc_ctype_cjk_lang to 1 if the language is "jp", "ko", or "zh", to 0 otherwise. (__locale_cjk_lang): New function. * libc/string/local.h (__locale_cjk_lang): Declare. * libc/string/wcwidth.c: Fix comments. (__wcwidth): Handle CJK Ambiguous Width characters according to setting returned by __locale_cjk_lang.