diff --git a/build/ck.build.aarch64 b/build/ck.build.aarch64
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/build/ck.build.aarch64
@@ -0,0 +1 @@
+
diff --git a/configure b/configure
index 8e27af8..9e24c0e 100755
--- a/configure
+++ b/configure
@@ -427,6 +427,12 @@ case $PLATFORM in
 		PLATFORM=arm
 		ENVIRONMENT=32
 		;;
+	"aarch64")
+		RTM_ENABLE="CK_MD_RTM_DISABLE"
+		MM="${MM:-"CK_MD_RMO"}"
+		PLATFORM=aarch64
+		ENVIRONMENT=64
+		;;
 	*)
 		RTM_ENABLE="CK_MD_RTM_DISABLE"
 		PLATFORM=
diff --git a/include/gcc/ck_pr.h b/include/gcc/ck_pr.h
index 83fdcfe..6ebadd8 100644
--- a/include/gcc/ck_pr.h
+++ b/include/gcc/ck_pr.h
@@ -128,6 +128,8 @@ CK_PR_FENCE(store)
 CK_PR_FENCE(store_store)
 CK_PR_FENCE(store_load)
 CK_PR_FENCE(memory)
+CK_PR_FENCE(acquire)
+CK_PR_FENCE(release)
 
 #undef CK_PR_FENCE