Fix up definition of new set_timespec_nsec() macro. (Related to bug #12582)

include/my_global.h:
  Add distinct set_timespec_nsec() macro for when HAVE_TIMESPEC_TS_SEC
  is defined.

include/my_global.h

@@ -927,7 +927,17 @@ typedef char		bool;	/* Ordinary boolean values 0 1 */
 
 #ifndef set_timespec
 #ifdef HAVE_TIMESPEC_TS_SEC
-#define set_timespec(ABSTIME,SEC) { (ABSTIME).ts_sec=time(0) + (time_t) (SEC); (ABSTIME).ts_nsec=0; }
+#define set_timespec(ABSTIME,SEC) \
+{ \
+  (ABSTIME).ts_sec=time(0) + (time_t) (SEC); \
+  (ABSTIME).ts_nsec=0; \
+}
+#define set_timespec_nsec(ABSTIME,NSEC) \
+{\
+  ulonglong now= my_getsystime(); \
+  (ABSTIME).ts_sec= (now / ULL(10000000)) + (NSEC / ULL(1000000000)); \
+  (ABSTIME).ts_nsec= (now % ULL(10000000)) * 100 + (NSEC % ULL(1000000000)); \
+}
 #else
 #define set_timespec(ABSTIME,SEC) \
 {\
@@ -936,15 +946,14 @@ typedef char		bool;	/* Ordinary boolean values 0 1 */
   (ABSTIME).tv_sec=tv.tv_sec+(time_t) (SEC);\
   (ABSTIME).tv_nsec=tv.tv_usec*1000;\
 }
-#endif /* HAVE_TIMESPEC_TS_SEC */
-#endif /* set_timespec */
-
 #define set_timespec_nsec(ABSTIME,NSEC) \
 {\
   ulonglong now= my_getsystime(); \
   (ABSTIME).tv_sec= (now / ULL(10000000)) + (NSEC / ULL(1000000000)); \
   (ABSTIME).tv_nsec= (now % ULL(10000000)) * 100 + (NSEC % ULL(1000000000)); \
 }
+#endif /* HAVE_TIMESPEC_TS_SEC */
+#endif /* set_timespec */
 
 /*
   Define-funktions for reading and storing in machine independent format