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-rw-r--r--include/time.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/time.h b/include/time.h
index daf4c27495..b501bfd3de 100644
--- a/include/time.h
+++ b/include/time.h
@@ -82,5 +82,10 @@ extern int __getdate_r (__const char *__string, struct tm *__resbufp);
 
 /* Determine CLK_TCK value.  */
 extern int __getclktck (void);
+
+
+/* Use in the clock_* functions.  Size of the field representing the
+   actual clock ID.  */
+#define CLOCK_IDFIELD_SIZE	3
 #endif
 #endif