bug#27476: libguile/memoize.c is not thread safe, so syntax parameter expansion is not thread-safe

[Ludovic Courtès]

Hi!

For the record, this was fixed in
61a8c9300daeb730fe5094f889bf13241942be84, which made it into 2.9/3.0,
and 2dccec9f553776656d9378e2315ad32d2e55286b, which made it into 2.2.5.

Closing!  :-)

Ludo’.