FreeBSD 4.X has an emtpy wctype.h, so test one of the affected
functions in Unicode.hsc if it's really there.
AC_CHECK_LIB(bfd, bfd_init)
dnl ** check for wide-char classifications
-AC_CHECK_HEADERS(wctype.h)
+dnl FreeBSD has an emtpy wctype.h, so test one of the affected
+dnl functions if it's really there.
+AC_CHECK_HEADERS(wctype.h,
+ AC_CHECK_FUNCS(iswspace)
+)
dnl ** check for readline, for Hugs and hslibs' Readline
dnl ncurses supersedes termcap and curses, but for compatibility,