bug#59331: sbcl currently fails to build on aarch64

[Andrew Patterson]

I contacted upstream 
(https://bugs.launchpad.net/sbcl/+bug/1996942); they've committed 
a fix and sent me a patch.  I tried to make a patch to guix that 
would fix it, but the patch apparently isn't being applied just by 
adding it to the patches field of the origin and I'm not sure why.

My current effort is attached.

0001-gnu-sbcl-Fix-build-on-aarch64.patch
Description: Currently-failing patch

--
Andrew Patterson