wmemchr            60 maint/gnulib/lib/fnmatch.c # define wmemchr __wmemchr
wmemchr           556 maint/gnulib/lib/wchar.in.h # undef wmemchr
wmemchr            19 maint/gnulib/lib/wmemchr-impl.h wmemchr (const wchar_t *s, wchar_t c, size_t n)