DF_1_SINGLETON
{ DF_1_SINGLETON, MSG_DF_1_SINGLETON_DEF },
{ DF_1_SINGLETON, MSG_DF_1_SINGLETON_CF },
{ DF_1_SINGLETON, MSG_DF_1_SINGLETON_CFNP },
{ DF_1_SINGLETON, MSG_DF_1_SINGLETON_NF },
ofl->ofl_dtflags_1 |= DF_1_SINGLETON;