--- old/src/cpu/x86/vm/globals_x86.hpp	2015-05-29 13:57:34.789083365 +0200
+++ new/src/cpu/x86/vm/globals_x86.hpp	2015-05-29 13:57:34.561083376 +0200
@@ -82,6 +82,8 @@
 
 define_pd_global(uintx, TypeProfileLevel, 111);
 
+define_pd_global(bool, PreserveFramePointer, false);
+
 #define ARCH_FLAGS(develop, product, diagnostic, experimental, notproduct) \
                                                                             \
   develop(bool, IEEEPrecision, true,                                        \