[RFA/RFC] Remove check of ctype.h include in safe-ctype.h?

[Joel Brobecker]

> Would it work to instead #poison isalpha et al in gcc/system.h?  Then 
> remove the check from safe-ctype.h altogether.

I think it would work.  But why putting these pragmas outside of
safe-ctype.h? How about putting them at the end of safe-ctype.h
instead?

> (Oh I think there are several system.h files (like one in libcpp,
> etc).  We'd need to do the poison in all of them (but not in
> tsystem.h).

Yep, noticed that.

> I don't know if this solves the darwin problem or not.  Also, this has
> the disadvantage in that users of safe-ctype.h other than GCC will not
> have the check.

Putting the #poison in safe-ctype.h would take care of that concern.

-- 
Joel