add timegm function (inverse of gmtime), nonstandard

[musl] / include / time.h

diff --git a/include/time.h b/include/time.h
index 067b519..ecdc66d 100644 (file)
--- 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
 }