ObjFW  Diff

	if (class->info & OBJC_CLASS_INFO_SETUP)
		return;

	superclassName = (const char *)class->superclass;
	if (superclassName != NULL) {
		Class super = objc_classname_to_class(superclassName, false);
		Class rootClass;

		if (super == Nil)
			return;

		setupClass(super);

		if (!(super->info & OBJC_CLASS_INFO_SETUP))
			return;

		/*
		 * GCC sets class->isa->isa to the name of the root class,
		 * while Clang just sets it to Nil. Therefore always calculate
		 * it.
		 */
		for (Class iter = super; iter != NULL; iter = iter->superclass)
			rootClass = iter;

		class->superclass = super;
		class->isa->isa = rootClass->isa;
		class->isa->superclass = super->isa;

		addSubclass(class);
		addSubclass(class->isa);
	} else {
		class->isa->isa = class->isa;
		class->isa->superclass = class;
	}

	updateIvarOffsets(class);

	class->info |= OBJC_CLASS_INFO_SETUP;
	class->isa->info |= OBJC_CLASS_INFO_SETUP;
}