diff -r c5b7455f846e -r 09241459a8b8 hotspot/src/cpu/aarch64/vm/globals_aarch64.hpp
--- a/hotspot/src/cpu/aarch64/vm/globals_aarch64.hpp	Mon Nov 02 12:34:27 2015 +0000
+++ b/hotspot/src/cpu/aarch64/vm/globals_aarch64.hpp	Tue Nov 03 09:41:03 2015 +0100
@@ -79,6 +79,9 @@
 
 define_pd_global(uintx, TypeProfileLevel, 111);
 
+// No performance work done here yet.
+define_pd_global(bool, CompactStrings, false);
+
 // avoid biased locking while we are bootstrapping the aarch64 build
 define_pd_global(bool, UseBiasedLocking, false);