dnl ---------------
AC_CHECK_LIB(mkstemp,mkstemp)
AC_CHECK_FUNCS(waitpid sigaction sigprocmask sigblock sigsetmask \
- sighold sigrelse lstat uname tzset killpg mkstemp \
+ sighold sigrelse lstat uname tzset mkstemp \
getutent nl_langinfo mbtowc wcwidth)
dnl sigsetjmp may be a macro