Phil Prentice <philp.cheer@xxxxxxxxxxxxxx> writes:
> Hi
>
> We are currently porting software using the gnu compiler (3.3.3). Its
> working very well so far, but we have a problem over varargs.
Sorry, but I think gcc support for varargs and other pre-C89
constructs is a thing of the past. gcc 3.2 was the last to
support -traditional, and I can't find the docs for when varargs
support was dropped. I suppose you could try 3.2.3 as an interm
solution.
>
> There are dozens of files which use varargs (not stdarg). In time we will
> move these files over to use stdarg, however we have the added problem of
> there having to be at least one parameter being declared for stdarg to
> compile and work.
>
> 1) Is there anyway that we can cheat here or do we have to go through all
> the function calls and add a dummy parameter etc to enable us to use
> stdarg's?? Many of these functions accept 0 or more tag parameters. How do
> we cope with no parameters?
>
> 2) Same question really, but a considerably amount of software exists
> which interfaces to our varargs software which would be nia on impossible to
> change. Again in this case are we stuck to having to use an older version of
> the compiler which supports varargs or again can we cheat somehow?
[snip]
I can't think of any off the top of my head, but I would be tempted to
experiment with some well-thought-out macro-hackery.
