System_config.User_dirsDefault user directories Unless you are working in the kernel of Frama-C, you should not use this.
val cache : unit -> Filepath.Normalized.tWhere Frama-C should read/write cached files.
val config : unit -> Filepath.Normalized.tWhere Frama-C should read/write config files.
val state : unit -> Filepath.Normalized.tWhere Frama-C should read/write state files