http://cygwin.com/ml/cygwin-patches/2002-q3/msg00355.html によると： wcscat, wcschr, wcscpy, wcscspn, wcslcat, wcslcpy, wcsncat, wcsncmp, wcsncpy, wcspbrk, wcsrchr, wcsspn, wcsstr, wmemchr, wmemcmp, wmemcpy, wmemmove, wmemset が newlib にあるけど、export されていない。 http://cygwin.com/ml/cygwin-patches/2002-q3/msg00352.html にてF氏曰く： > The current implementations of these functions don't conform the > standard at all. I will correct these implementations in the > near feature. I recommend the dll doesn't export these functions > and the functions added by me until then. 近い将来に期待だな。