mbrtowc [test $ac_use_included_regex = yes]
mbsinit [test $ac_use_included_regex = yes]
nl_langinfo [test $ac_use_included_regex = yes]
-pthread [test $ac_use_included_regex = yes]
stdbool [test $ac_use_included_regex = yes]
stdint [test $ac_use_included_regex = yes]
wchar [test $ac_use_included_regex = yes]