target extra/locale/wctables.h failed

uClibc-XXX/extra/locale/gen_wctype.c

while (--argc) {
++argv;
if (!strcmp(*argv, "-v")) {
++verbose;
continue;
}

#if 0
if (!setlocale(LC_CTYPE, *argv)) {
verbose_msg("setlocale(LC_CTYPE,%s) failed! Skipping this locale…\n", *argv);
continue;
}
#endif