1 files changed, 12 insertions, 2 deletions
diff --git a/nuttx/include/time.h b/nuttx/include/time.h
index 6596bf32f..88f4606d5 100644
--- a/nuttx/include/time.h
+++ b/nuttx/include/time.h
@@ -168,14 +168,20 @@ extern "C"
 #define EXTERN extern
 #endif
 
+#ifdef CONFIG_LIBC_LOCALTIME
+
 /* daylight - Daylight savings time flag */
 /* EXTERN int daylight; not supported */
 
 /* timezone - Difference from UTC and local standard time */
 /* EXTERN long int timezone; not supported */
 
-/* tzname[] - Timezone strings */
-/* EXTERN FAR char *tzname[]; not supported */
+/* tzname[] - Timezone strings
+ * Setup by tzset()
+ */
+
+EXTERN FAR char *tzname[2];
+#endif
 
 /********************************************************************************
  * Public Function Prototypes
@@ -206,6 +212,10 @@ int timer_getoverrun(timer_t timerid);
 
 int nanosleep(FAR const struct timespec *rqtp, FAR struct timespec *rmtp);
 
+#ifdef CONFIG_LIBC_LOCALTIME
+void tzset(void);
+#endif
+
 #undef EXTERN
 #if defined(__cplusplus)
 }