The programs gen_ctype_from_glibc.c and gen_collate_from_glibc.c will generate data files which can be used by uClibc ctype, strcoll and setlocale functions to support locales. From the comments: /* * Generator locale ctype tables * You must have already setuped locale for worked libc (libc5 or glibc) * * This programm scan /usr/share/locale directories and write * ./LOCALE/LC_CTYPE files for system with uclibc * * Written by Vladimir Oleynik <vodz@usa.net> 2001 */ Sample usage to dump all the data files in a tmp directory: gcc gen_ctype_from_glibc.c -o gen_ctype_from_glibc gcc gen_collate_from_glibc.c -o gen_ctype_from_glibc mkdir tmp cd tmp ../gen_ctype_from_glibc -d /usr/share/locale -c ../gen_collate_from_glibc Then just move the directory or directories you need (not the .c files) to the uClibc locale file directory you set in Config.