Fix PR6501

[John David Anglin]

Mark,

> > 2002-04-28  John David Anglin  <dave@hiauly1.hia.nrc.ca>
> > 
> > 	* include/c_std/std_cctype.h: Include bits/c++config.h.
> > 	* config/os/hpux/bits/os_defines.h (_SB_CTYPE_MACROS): Define.
> 
> This is fine: thanks for fixing this.
> 
> -benjamin
> 

This fixes a build regression under hpux 10.20.  OK for the 3.1 branch?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)