sorry about that! some update on its background: meanwhile development on openethereum has been abandoned in favor of nethermind.
unless some new rust packages were added that depend on rust-gmp-mpfr-sys, there's probably no dependant of it, and in that case it can be safely removed. -- • attila lendvai • PGP: 963F 5D5F 45C7 DFCD 0A39 -- “The ultimate, hidden truth of the world is that it is something that we make, and could just as easily make differently.” — David Graeber (1961–2020)