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diff --git a/third_party/msgpack/include/msgpack/predef/hardware/simd.h b/third_party/msgpack/include/msgpack/predef/hardware/simd.h
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+++ b/third_party/msgpack/include/msgpack/predef/hardware/simd.h
@@ -0,0 +1,119 @@
+/*
+Copyright Charly Chevalier 2015
+Copyright Joel Falcou 2015
+Distributed under the Boost Software License, Version 1.0.
+(See accompanying file LICENSE_1_0.txt or copy at
+http://www.boost.org/LICENSE_1_0.txt)
+*/
+
+#include <msgpack/predef/hardware/simd/x86.h>
+#include <msgpack/predef/hardware/simd/x86_amd.h>
+#include <msgpack/predef/hardware/simd/arm.h>
+#include <msgpack/predef/hardware/simd/ppc.h>
+
+#ifndef MSGPACK_PREDEF_HARDWARE_SIMD_H
+#define MSGPACK_PREDEF_HARDWARE_SIMD_H
+
+#include <msgpack/predef/version_number.h>
+
+/*`
+ [section Using the `MSGPACK_HW_SIMD_*` predefs]
+ [include ../doc/hardware_simd.qbk]
+ [endsect]
+
+ [/ --------------------------- ]
+
+ [section `MSGPACK_HW_SIMD_*`]
+
+ [heading `MSGPACK_HW_SIMD`]
+
+ The SIMD extension detected for a specific architectures.
+ Version number depends on the detected extension.
+
+ [table
+     [[__predef_symbol__] [__predef_version__]]
+
+     [[`MSGPACK_HW_SIMD_X86_AVAILABLE`] [__predef_detection__]]
+     [[`MSGPACK_HW_SIMD_X86_AMD_AVAILABLE`] [__predef_detection__]]
+     [[`MSGPACK_HW_SIMD_ARM_AVAILABLE`] [__predef_detection__]]
+     [[`MSGPACK_HW_SIMD_PPC_AVAILABLE`] [__predef_detection__]]
+     ]
+
+ [include ../include/msgpack/predef/hardware/simd/x86.h]
+ [include ../include/msgpack/predef/hardware/simd/x86_amd.h]
+ [include ../include/msgpack/predef/hardware/simd/arm.h]
+ [include ../include/msgpack/predef/hardware/simd/ppc.h]
+
+ [endsect]
+
+ [/ --------------------------- ]
+
+ [section `MSGPACK_HW_SIMD_X86_*_VERSION`]
+ [include ../include/msgpack/predef/hardware/simd/x86/versions.h]
+ [endsect]
+
+ [section `MSGPACK_HW_SIMD_X86_AMD_*_VERSION`]
+ [include ../include/msgpack/predef/hardware/simd/x86_amd/versions.h]
+ [endsect]
+
+ [section `MSGPACK_HW_SIMD_ARM_*_VERSION`]
+ [include ../include/msgpack/predef/hardware/simd/arm/versions.h]
+ [endsect]
+
+ [section `MSGPACK_HW_SIMD_PPC_*_VERSION`]
+ [include ../include/msgpack/predef/hardware/simd/ppc/versions.h]
+ [endsect]
+
+ */
+
+// We check if SIMD extension of multiples architectures have been detected,
+// if yes, then this is an error!
+//
+// NOTE: _X86_AMD implies _X86, so there is no need to check for it here!
+//
+#if defined(MSGPACK_HW_SIMD_ARM_AVAILABLE) && defined(MSGPACK_HW_SIMD_PPC_AVAILABLE) ||\
+    defined(MSGPACK_HW_SIMD_ARM_AVAILABLE) && defined(MSGPACK_HW_SIMD_X86_AVAILABLE) ||\
+    defined(MSGPACK_HW_SIMD_PPC_AVAILABLE) && defined(MSGPACK_HW_SIMD_X86_AVAILABLE)
+#   error "Multiple SIMD architectures detected, this cannot happen!"
+#endif
+
+#if defined(MSGPACK_HW_SIMD_X86_AVAILABLE) && defined(MSGPACK_HW_SIMD_X86_AMD_AVAILABLE)
+    // If both standard _X86 and _X86_AMD are available,
+    // then take the biggest version of the two!
+#   if MSGPACK_HW_SIMD_X86 >= MSGPACK_HW_SIMD_X86_AMD
+#      define MSGPACK_HW_SIMD MSGPACK_HW_SIMD_X86
+#   else
+#      define MSGPACK_HW_SIMD MSGPACK_HW_SIMD_X86_AMD
+#   endif
+#endif
+
+#if !defined(MSGPACK_HW_SIMD)
+    // At this point, only one of these two is defined
+#   if defined(MSGPACK_HW_SIMD_X86_AVAILABLE)
+#      define MSGPACK_HW_SIMD MSGPACK_HW_SIMD_X86
+#   endif
+#   if defined(MSGPACK_HW_SIMD_X86_AMD_AVAILABLE)
+#      define MSGPACK_HW_SIMD MSGPACK_HW_SIMD_X86_AMD
+#   endif
+#endif
+
+#if defined(MSGPACK_HW_SIMD_ARM_AVAILABLE)
+#   define MSGPACK_HW_SIMD MSGPACK_HW_SIMD_ARM
+#endif
+
+#if defined(MSGPACK_HW_SIMD_PPC_AVAILABLE)
+#   define MSGPACK_HW_SIMD MSGPACK_HW_SIMD_PPC
+#endif
+
+#if defined(MSGPACK_HW_SIMD)
+#   define MSGPACK_HW_SIMD_AVAILABLE
+#else
+#   define MSGPACK_HW_SIMD MSGPACK_VERSION_NUMBER_NOT_AVAILABLE
+#endif
+
+#define MSGPACK_HW_SIMD_NAME "Hardware SIMD"
+
+#endif
+
+#include <msgpack/predef/detail/test.h>
+MSGPACK_PREDEF_DECLARE_TEST(MSGPACK_HW_SIMD, MSGPACK_HW_SIMD_NAME)