bug#57037: Package `guile-newt' cannot be cross-compiled

[Jean Pierre De Jesus DIAZ]

The `guile-newt' package that is used for the installation UI can't
be cross-compiled as it tries to load the `newt' dynamic library when
the Guile code is compiled. I've tried to find a solution/fix but I
don't know much about how Guile byte-code compilation works.

The compilation error can be reproduced with (#56536 was pushed a few
hours ago, so a git pull may be needed):

./pre-inst-env guix build guile-newt --target=aarch64-linux-gnu

I think this is one of the last remaining bits before being able to
fully cross compile an installation image.

—
Jean-Pierre De Jesus DIAZ