During a docker build (after applying u/saraedum/34242 's changes, which are good and necessary) I got this:

[curl-7.84.0] configure: error: --with-libmetalink no longer works!
[...]
[curl-7.84.0] Error configuring curl-7.84.0
[...]
The following package(s) may have failed to build [...]
[...]
* package:         curl-7.84.0

Libmetalink is no longer supported by curl, and apparently this also errors out on --without-libmetalink!

https://daniel.haxx.se/blog/2021/06/07/bye-bye-metalink-in-curl/

CC: @saraedum @dimpase

Component: packages: standard

Author: Robert Figura

Branch/Commit: c42eef0

Reviewer: Matthias Koeppe

Issue created by migration from https://trac.sagemath.org/ticket/34360