The following set of packages is known to be a working configuration for compiling Frama-C+dev, on a machine with gcc <= 9[^gcc-10] - OCaml 4.08.1 - alt-ergo.2.0.0 (for wp, optional) - apron.v0.9.12 (for eva, optional) - lablgtk.2.18.11 | lablgtk3.3.1.1 + lablgtk3-sourceview3.3.1.1 - mlgmpidl.1.2.12 (for eva, optional) - ocamlfind.1.8.0 - ocamlgraph.1.8.8 - ppx_deriving_yojson.3.5.2 (for mdr, optional) - why3.1.3.1 - yojson.1.7.0 - zarith.1.9.1 - zmq.5.1.3 (for server, optional) [^gcc-10]: As mentioned in this [OCaml PR](https://github.com/ocaml/ocaml/issues/9144) gcc 10 changed its default linking conventions to make them more stringent, resulting in various linking issues. In particular, only OCaml 4.10 can be linked against gcc-10. With respect to the list above, this also means using ocamlfind.1.8.1 and the development version of lablgtk (https://github.com/garrigue/lablgtk)