Convert 3.2 sources to ISO C90

[Gabriel Dos Reis]

Marc Espie <espie@nerim.net> writes:

[...]

I wanted to stay out of this discussion, but I can't let the followiing:

| At a guess again, I want tend to say that any actual ISO C feature that
| is not supported by K&R is bound to make the compiler more brittle.

I disagree.  Using the appropriate types to convey the real intent
isn't something I think make the compiler more brittle. However, I saw
in the past that because we wanted to stay with K&R, we can't use much
more expressive types.  That is a pity. 

-- Gaby