Sebastien, ports@

I had discovered that x11/stumpwm can't be compiled anymore since the update
of sbcl to 2.4.11. I've tried both 23.11 and 24.11 versions of stumpwm and
it fails.

I was able to determine the commit that introduced the issue:
https://github.com/sbcl/sbcl/commit/55c0a64954972bd64114aacc6769a42056b71cf3
and had an open issue upstream: https://bugs.launchpad.net/sbcl/+bug/2090967

Not sure that the right move here: revert that commit? revert to
sbcl-2.4.10? Something else?

--
wbr, Kirill