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diff --git a/externals/breakpad/src/common/mac/super_fat_arch.h b/externals/breakpad/src/common/mac/super_fat_arch.h
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+// Copyright 2015 Google LLC
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google LLC nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Original author: Erik Chen <erikchen@chromium.org>
+
+// super_fat_arch.h: A class to handle 64-bit object files. Has conversions to
+// and from struct fat_arch.
+
+#ifndef BREAKPAD_COMMON_MAC_SUPER_FAT_ARCH_H_
+#define BREAKPAD_COMMON_MAC_SUPER_FAT_ARCH_H_
+
+#include <limits>
+#include <mach-o/fat.h>
+#include <stdint.h>
+
+// Similar to struct fat_arch, except size-related parameters support
+// 64-bits.
+class SuperFatArch {
+ public:
+  uint32_t cputype;
+  uint32_t cpusubtype;
+  uint64_t offset;
+  uint64_t size;
+  uint64_t align;
+
+  SuperFatArch() :
+      cputype(0),
+      cpusubtype(0),
+      offset(0),
+      size(0),
+      align(0) {
+  }
+
+  explicit SuperFatArch(const struct fat_arch& arch) :
+      cputype(arch.cputype),
+      cpusubtype(arch.cpusubtype),
+      offset(arch.offset),
+      size(arch.size),
+      align(arch.align) {
+  }
+
+  // Returns false if the conversion cannot be made.
+  // If the conversion succeeds, the result is placed in |output_arch|.
+  bool ConvertToFatArch(struct fat_arch* output_arch) const {
+    if (offset > std::numeric_limits<uint32_t>::max())
+      return false;
+    if (size > std::numeric_limits<uint32_t>::max())
+      return false;
+    if (align > std::numeric_limits<uint32_t>::max())
+      return false;
+    struct fat_arch arch;
+    arch.cputype = cputype;
+    arch.cpusubtype = cpusubtype;
+    arch.offset = offset;
+    arch.size = size;
+    arch.align = align;
+    *output_arch = arch;
+    return true;
+  }
+};
+
+#endif  // BREAKPAD_COMMON_MAC_SUPER_FAT_ARCH_H_