+typedef simgrid::kernel::context::Context* smx_context_t;
+typedef simgrid::simix::ActorImpl* smx_actor_t;
+typedef simgrid::simix::MutexImpl* smx_mutex_t;
+typedef simgrid::kernel::activity::MailboxImpl* smx_mailbox_t;
+typedef simgrid::surf::StorageImpl* surf_storage_t;
+
+typedef simgrid::kernel::lmm::Element* lmm_element_t;
+typedef const simgrid::kernel::lmm::Element* const_lmm_element_t;
+typedef simgrid::kernel::lmm::Variable* lmm_variable_t;
+typedef simgrid::kernel::lmm::Constraint* lmm_constraint_t;
+typedef simgrid::kernel::lmm::ConstraintLight* lmm_constraint_light_t;
+typedef simgrid::kernel::lmm::System* lmm_system_t;
+