>     I consulted Riastradh and he directed me to this snippet in the
>     master branch:
>     https://git.savannah.gnu.org/cgit/mit-scheme.git/tree/src/runtime/mit-macros.scm?id=ebbbc133b6f24fc73d786284e155379f38e15a88#n774

Neat. Thanks!

>     Should we include these directly?
>
> That would be great, although I think Lassi is hoping to automate
> everything.

curl --fail --silent --show-error \

https://git.savannah.gnu.org/cgit/mit-scheme.git/plain/src/runtime/mit-macros.scm
|
     grep -oE "^\(define-feature 'srfi-[0-9]+ " |
     grep -oE '[0-9]+' |
     sort -g |
     uniq

It takes 2 minutes to automate one...