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-rw-r--r--include/time.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/time.h b/include/time.h
index 067b5196..ecdc66df 100644
--- a/include/time.h
+++ b/include/time.h
@@ -114,6 +114,9 @@ struct tm *getdate (const char *);
 int stime(time_t *);
 #endif
 
+#if defined(_GNU_SOURCE)
+time_t timegm(struct tm *);
+#endif
 
 #ifdef __cplusplus
 }