diff --git a/libatomic/ChangeLog b/libatomic/ChangeLog
index 449fed2eaf7..d451f9ca0cb 100644
--- a/libatomic/ChangeLog
+++ b/libatomic/ChangeLog
@@ -1,3 +1,7 @@
+2012-12-04  Marcus Shawcroft  <marcus.shawcroft@arm.com>
+
+	* config/arm/arm-config.h (__ARM_ARCH_8A__): New.
+
 2012-11-21  Matthias Klose  <doko@ubuntu.com>
 
 	* configure.tgt (i[3456]86): Handle -mx32 like -m64.
diff --git a/libatomic/config/arm/arm-config.h b/libatomic/config/arm/arm-config.h
index b94a372c1d8..b99c82eb94b 100644
--- a/libatomic/config/arm/arm-config.h
+++ b/libatomic/config/arm/arm-config.h
@@ -57,6 +57,10 @@
 # define __ARM_ARCH__ 7
 #endif
 
+#if defined(__ARM_ARCH_8A__)
+# define __ARM_ARCH__ 8
+#endif
+
 #ifndef __ARM_ARCH__
 #error Unable to determine architecture.
 #endif