AC_CHECK_FUNCS(waitpid sigaction sigprocmask sigblock sigsetmask \
sighold sigrelse lstat tzset mkstemp \
getutent nl_langinfo mbtowc wcwidth)
AC_CHECK_FUNCS(waitpid sigaction sigprocmask sigblock sigsetmask \
sighold sigrelse lstat tzset mkstemp \
getutent nl_langinfo mbtowc wcwidth)