ex_packloadall(exarg_T *eap)
{
    if (!did_source_packages || eap->forceit)
    {
	// First do a round to add all directories to 'runtimepath', then load
	// the plugins. This allows for plugins to use an autoload directory
	// of another plugin.
	add_pack_start_dirs();
	load_start_packages();
    }
}