diff -up v8-3.14.5.10/src/ia32/cpu-ia32.cc.system-valgrind v8-3.14.5.10/src/ia32/cpu-ia32.cc

--- v8-3.14.5.10/src/ia32/cpu-ia32.cc.system-valgrind	2012-01-16 06:42:08.000000000 -0500

+++ v8-3.14.5.10/src/ia32/cpu-ia32.cc	2014-12-02 15:15:07.819525430 -0500

@@ -28,7 +28,7 @@

 // CPU specific code for ia32 independent of OS goes here.

 #ifdef __GNUC__

-#include "third_party/valgrind/valgrind.h"

+#include <valgrind/valgrind.h>

 #endif

 #include "v8.h"

@@ -67,8 +67,7 @@ void CPU::FlushICache(void* start, size_

   // solution is to run valgrind with --smc-check=all, but this comes at a big

   // performance cost.  We can notify valgrind to invalidate its cache.

 #ifdef VALGRIND_DISCARD_TRANSLATIONS

-  unsigned res = VALGRIND_DISCARD_TRANSLATIONS(start, size);

-  USE(res);

+  VALGRIND_DISCARD_TRANSLATIONS(start, size);

 #endif

 }

diff -up v8-3.14.5.10/src/x64/cpu-x64.cc.system-valgrind v8-3.14.5.10/src/x64/cpu-x64.cc

--- v8-3.14.5.10/src/x64/cpu-x64.cc.system-valgrind	2012-02-23 03:45:21.000000000 -0500

+++ v8-3.14.5.10/src/x64/cpu-x64.cc	2014-12-02 15:14:51.289621074 -0500

@@ -28,7 +28,7 @@

 // CPU specific code for x64 independent of OS goes here.

 #if defined(__GNUC__) && !defined(__MINGW64__)

-#include "third_party/valgrind/valgrind.h"

+#include <valgrind/valgrind.h>

 #endif

 #include "v8.h"

@@ -67,8 +67,7 @@ void CPU::FlushICache(void* start, size_

   // solution is to run valgrind with --smc-check=all, but this comes at a big

   // performance cost.  We can notify valgrind to invalidate its cache.

 #ifdef VALGRIND_DISCARD_TRANSLATIONS

-  unsigned res = VALGRIND_DISCARD_TRANSLATIONS(start, size);

-  USE(res);

+  VALGRIND_DISCARD_TRANSLATIONS(start, size);

 #endif

 }