- "ocaml-pa-do"; (* build failure, complex *)
- "frama-c"; (* build failure *)
- "gappalib-coq"; (* build failure in configure script *)
- "ocaml-camlimages"; (* build failure, conflicting C types in header files *)
+ "ocaml-pa-do"; (* orphaned *)
+ "plplot"; (* FTBFS, unrelated to OCaml *)