Fix broken #ifdef for __sparcv8

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

diff --git a/src/include/storage/s_lock.h b/src/include/storage/s_lock.h
index d6df03f770c3835b74c5155fd1ff44b9176974aa..ff7453b9cbd5b8be4d5281d0e2461785f67c096b 100644 (file)
--- a/src/include/storage/s_lock.h
+++ b/src/include/storage/s_lock.h
@@ -372,7 +372,7 @@ tas(volatile slock_t *lock)
  * requires a barrier.
  */
 #define S_UNLOCK(lock)         (*((volatile slock_t *) (lock)) = 0)
-#elif  __sparcv8
+#elif defined(__sparcv8)
 /* stbar is available (and required for both PSO, RMO), membar isn't */
 #define S_UNLOCK(lock) \
 do \