--- old/src/os_cpu/linux_zero/vm/atomic_linux_zero.hpp	2017-08-17 13:30:08.010987990 -0400
+++ new/src/os_cpu/linux_zero/vm/atomic_linux_zero.hpp	2017-08-17 13:30:07.898982239 -0400
@@ -270,7 +270,7 @@
 inline T Atomic::PlatformCmpxchg<4>::operator()(T exchange_value,
                                                 T volatile* dest,
                                                 T compare_value,
-                                                cmpxchg_memory_order order) {
+                                                cmpxchg_memory_order order) const {
   STATIC_ASSERT(4 == sizeof(T));
 #ifdef ARM
   return cmpxchg_using_helper<int>(arm_compare_and_swap, exchange_value, dest, compare_value);
@@ -288,7 +288,7 @@
 inline T Atomic::PlatformCmpxchg<8>::operator()(T exchange_value,
                                                 T volatile* dest,
                                                 T compare_value,
-                                                cmpxchg_memory_order order) {
+                                                cmpxchg_memory_order order) const {
   STATIC_ASSERT(8 == sizeof(T));
   return __sync_val_compare_and_swap(dest, compare_value, exchange_value);
 }