Re: Make.rules.in: Pass the --nounistd flag to flex since unistd.h is a header that might not be present on all systems.

[Robert Shearman]

Alexandre Julliard wrote:
> Robert Shearman  writes:
> > If we do need it, we can include it in the .l file after config.h and
> > with an appropriate include guard.
>
> You should instead put a %option in the files that need it.

The point is that all of the files need it. Only tools/widl/parser.l 
needs to include unistd.h and it already does so manually.