The license is a little weird, for one. It's also strange because I think it's the only non-GNU dependency in the whole chain. I guess I'd also have expected a

The license is a little weird, for one. It's also strange because I think it's the only non-GNU dependency in the whole chain. I guess I'd also have expected a GC scheme to be baked into the core Guile source-code instead of relying on an external GC library. It's also not fully portable C code. I'm sure the library works great - it has a long history, and I'm definitely not knocking it. But it's a little bit of an unexpected dependency for sure.