Well, of course, but if the implementation has to be non-portable, it has to be (and there will be a bunch of those in the Green Edition).   But it doesn't have to be blocked by licensing issues.

On Fri, Mar 15, 2019 at 6:31 PM Per Bothner <xxxxxx@bothner.com> wrote:
On 3/15/19 2:34 PM, John Cowan wrote:
> It's more about being able to integrate the code into a Scheme implementation that is itself BSD vel sim.

Remember, a SRFI need not have a "portable Scheme implementation" or even
a "mostly-portable solution".  It can even be (though "least preferred") an
"outline of how it might be implemented."

So there is no guarantee of "being able to integrate the code into a Scheme implementation"
at all.
--
        --Per Bothner
xxxxxx@bothner.com   http://per.bothner.com/