if (*env_params) { g_hash_table_foreach(*env_params, add_prefix_foreach, *env_params);
if (env_params) { g_hash_table_foreach(env_params, add_prefix_foreach, new_env_params);
add_OCF_prefix( GHashTable ** env_params){	if (*env_params) {		g_hash_table_foreach(*env_params, add_prefix_foreach,					    *env_params);	}}