Fix broken #ifdef for __sparcv8

Rob Rowan. Back to all supported versions, like the  that added
the broken #ifdef.

diff --git a/src/include/storage/s_lock.h b/src/include/storage/s_lock.h
index 52b86e3f0d755ddd41d71b6615a2ae1b89fd52d8..f4dc0dbedc90b8835abc6ddf939a28bbedb0d3f0 100644 (file)
--- a/src/include/storage/s_lock.h
+++ b/src/include/storage/s_lock.h
@@ -404,7 +404,7 @@ tas(volatile slock_t *lock)
  * requires a barrier.  We fall through to the default gcc definition of
  * S_UNLOCK in this case.
  */
-#elif  __sparcv8
+#elif defined(__sparcv8)
 /* stbar is available (and required for both PSO, RMO), membar isn't */
 #define S_UNLOCK(lock) \
 do \