DEFINE_NLITEM_CONSTANT (T_FMT); /* Time format for strftime. */
DEFINE_NLITEM_CONSTANT (T_FMT_AMPM);/* 12-hour time format for strftime. */
+#ifdef ERA
DEFINE_NLITEM_CONSTANT (ERA); /* Alternate era. */
+#endif
+#ifdef ERA_D_FMT
DEFINE_NLITEM_CONSTANT (ERA_D_FMT); /* Date in alternate era format. */
+#endif
+#ifdef ERA_D_T_FMT
DEFINE_NLITEM_CONSTANT (ERA_D_T_FMT); /* Date and time in alternate era
format. */
+#endif
+#ifdef ERA_T_FMT
DEFINE_NLITEM_CONSTANT (ERA_T_FMT); /* Time in alternate era format. */
+#endif
+#ifdef ALT_DIGITS
DEFINE_NLITEM_CONSTANT (ALT_DIGITS); /* Alternate symbols for digits. */
+#endif
DEFINE_NLITEM_CONSTANT (RADIXCHAR);
DEFINE_NLITEM_CONSTANT (THOUSEP);