DBG_MOD
DBG1(DBG_MOD, "module '%s' already exists\n", modname);
DBG1(DBG_MOD, "loading module '%s'\n", modname);
DBG1(DBG_MOD, "registering module '%s'\n", imp->ippm_name);
DBG1(DBG_MOD, "unregistering module '%s'\n", imp->ippm_name);