good_lp VS Clp

How exactly does this dovetail with https://github.com/rust-or/good_lp ? Will it be a replacement, an enhancement, or something else?

I would like to see your code to see how you did it. I used the crate good_lp but it required an external command line "cbc" for me (on Windows) and failed to use GLPK later.

Actually you can, but your struct has to be generic. I added an example in the repository to make that clear: https://github.com/lovasoa/good_lp/blob/main/tests/resource_allocation_problem.rs

If you want to compile a large fraction of C/C++ code, just take a distro and rebuild it from scratch--Debian actually does this reasonably frequently. All of the distros have to somehow solve the problem of figuring out how to compile and install everything they package, although some are better at letting you change the build environment for testing than others. (From what I understand, Debian and Nix are the best bets here.)

But what that doesn't solve is making sure that the resulting builds actually works. Cargo, for Rust, makes running some form of tests relatively easy, and Rust is new enough that virtually every published package is going to contain some amount of unit tests. But for random open-source packages? Not really. Pick a random numerics library--for something like an linear programming solver, this is the most comprehensive automated test suite I've seen: https://github.com/coin-or/Clp/tree/master/test

Actually it looks like it is licensed under the EPL, not the GPL: https://github.com/coin-or/Clp/blob/master/LICENSE