-#if defined(HAVE_THREAD_CONTEXTS) && !defined(HAVE_THREAD_LOCAL_STORAGE)
- /* the __thread storage class is not available on this platform:
- * use getspecific/setspecific instead to store the current context in each thread */
- xbt_os_thread_key_create(&smx_current_context_key);
-#endif
- if (!simix_global->context_factory) {
- /* select the context factory to use to create the contexts */
- if (simgrid::simix::factory_initializer)
- simix_global->context_factory = simgrid::simix::factory_initializer();
- else { /* use the factory specified by --cfg=contexts/factory:value */
-#if defined(HAVE_THREAD_CONTEXTS)
- if (!strcmp(smx_context_factory_name, "thread"))
- simix_global->context_factory = simgrid::simix::thread_factory();
-#else
- if (0);
-#endif
-#ifdef HAVE_UCONTEXT_CONTEXTS
- else if (!strcmp(smx_context_factory_name, "ucontext"))
- simix_global->context_factory = simgrid::simix::sysv_factory();
-#endif
-#ifdef HAVE_RAW_CONTEXTS
- else if (!strcmp(smx_context_factory_name, "raw"))
- simix_global->context_factory = simgrid::simix::raw_factory();
+ xbt_assert(simix_global->context_factory == nullptr);
+
+ smx_context_stack_size_was_set = not simgrid::config::is_default("contexts/stack-size");
+ smx_context_guard_size_was_set = not simgrid::config::is_default("contexts/guard-size");
+
+#if HAVE_SMPI && (defined(__APPLE__) || defined(__NetBSD__))
+ std::string priv = simgrid::config::get_value<std::string>("smpi/privatization");
+ if (context_factory_name == "thread" && (priv == "dlopen" || priv == "yes" || priv == "default" || priv == "1")) {
+ XBT_WARN("dlopen+thread broken on Apple and BSD. Switching to raw contexts.");
+ context_factory_name = "raw";
+ }