This follows commit 0b1f70d1a7, which inadvertently broke the build of Guix
for i586-pc-gnu (Hurd).
* gnu/packages/patches/disarchive-cross-compilation.patch: New patch.
* gnu/local.mk (dist_patch_DATA): Register it.
* gnu/packages/backup.scm (disarchive)[source]: Apply it.
[phases]{delete-configure}: New phase.
[native-inputs]: Add guile-3.0 and guile-gcrypt.
