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		6cb03e	`diff --git a/postgresql-9.1.9/src/include/storage/s_lock.h b/postgresql-9.1.9/src/include/storage/s_lock.h`
		6cb03e	`index 987fb9c..1ba718c 100644`
		6cb03e	`--- a/postgresql-9.1.9/src/include/storage/s_lock.h`
		6cb03e	`+++ b/postgresql-9.1.9/src/include/storage/s_lock.h`
		6cb03e	`@@ -296,6 +296,29 @@ tas(volatile slock_t *lock)`
		6cb03e	`#endif /* __arm__ */`
		6cb03e
		6cb03e
		6cb03e	`+/*`
		6cb03e	`+ * On ARM64, we use __sync_lock_test_and_set(int *, int) if available.`
		6cb03e	`+ */`
		6cb03e	`+#if defined(__aarch64__) \|\| defined(__aarch64)`
		6cb03e	`+#ifdef HAVE_GCC_INT_ATOMICS`
		6cb03e	`+#define HAS_TEST_AND_SET`
		6cb03e	`+`
		6cb03e	`+#define TAS(lock) tas(lock)`
		6cb03e	`+`
		6cb03e	`+typedef int slock_t;`
		6cb03e	`+`
		6cb03e	`+static __inline__ int`
		6cb03e	`+tas(volatile slock_t *lock)`
		6cb03e	`+{`
		6cb03e	`+ return __sync_lock_test_and_set(lock, 1);`
		6cb03e	`+}`
		6cb03e	`+`
		6cb03e	`+#define S_UNLOCK(lock) __sync_lock_release(lock)`
		6cb03e	`+`
		6cb03e	`+#endif /* HAVE_GCC_INT_ATOMICS */`
		6cb03e	`+#endif /* __aarch64__ */`
		6cb03e	`+`
		6cb03e	`+`
		6cb03e	`/* S/390 and S/390x Linux (32- and 64-bit zSeries) */`
		6cb03e	`#if defined(__s390__) \|\| defined(__s390x__)`
		6cb03e	`#define HAS_TEST_AND_SET`