More dev86 changes (0.16.7)

[Robert de Bath <robert$@mayday.cix.co.uk>]

Rather than joining in this discussion I've been adding about a thousand
lines of new code (and another of old) to dev86. The result is a nice
shiny new CPP. My problem now is that I've run out of bugs in it and need
your help to find some more.  ;-)

Advantages:
 The new CPP is fully ansi capable including '#' '##' and '??='.
 It's also a proper K&R preprocessor if you want.

My next step will be to rip the old CPP out of bcc completely, hopefully
making it lots smaller and so small enough to easily fit in an ELKS a.out.

This version uses the new cpp by default, -e will make it fall back to
the old one (for the moment).

With this version __STDC__ is now defined as "1" not "0" as it was before
because cpp is now fully ansi compliant (crosses fingers).

-- 
Rob.                          (Robert de Bath <robert$ @ debath.co.uk>)
                                       <http://www.cix.co.uk/~mayday>