Use our own macros for 64-bit constants.

src/globals.h

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // 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
@@ skipping 32 matching lines @@
 // include very early in the main include file.
 
 #ifdef USE_MYBOOL
 typedef unsigned int __my_bool__;
 #define bool __my_bool__  // use 'indirection' to avoid name clashes
 #endif
 
 typedef uint8_t byte;
 typedef byte* Address;
 
-// Define macros for writing 64-bit constants and pointer-size constants.
+// Define our own macros for writing 64-bit constants.  This is less fragile
+// than defining __STDC_CONSTANT_MACROS before including <stdint.h>, and it
+// works on compilers that don't have it (like MSVC).
 #ifdef _MSC_VER
-#define UINT64_C(x)  (x ## UI64)
-#define INT64_C(x)   (x ## I64)
+#define V8_UINT64_C(x)  (x ## UI64)
+#define V8_INT64_C(x)   (x ## I64)
+#else
+#define V8_UINT64_C(x)  (x ## ULL)
+#define V8_INT64_C(x)   (x ## LL)
 #endif
 
 // Code-point values in Unicode 4.0 are 21 bits wide.
 typedef uint16_t uc16;
 typedef int32_t uc32;
 
 #if defined(V8_ARCH_IA32) || defined(V8_ARCH_X64)
 #define CAN_READ_UNALIGNED 1
 #endif
 
@@ skipping 46 matching lines @@
 const int kBitsPerByte = 8;
 const int kBitsPerByteLog2 = 3;
 const int kBitsPerPointer = kPointerSize * kBitsPerByte;
 const int kBitsPerInt = kIntSize * kBitsPerByte;
 
 
 // Zap-value: The value used for zapping dead objects.
 // Should be a recognizable hex value tagged as a heap object pointer.
 #ifdef V8_ARCH_X64
 const Address kZapValue =
-    reinterpret_cast<Address>(UINT64_C(0xdeadbeedbeadbeed));
+    reinterpret_cast<Address>(V8_UINT64_C(0xdeadbeedbeadbeed));
 const Address kHandleZapValue =
-    reinterpret_cast<Address>(UINT64_C(0x1baddead0baddead));
+    reinterpret_cast<Address>(V8_UINT64_C(0x1baddead0baddead));
 const Address kFromSpaceZapValue =
-    reinterpret_cast<Address>(UINT64_C(0x1beefdad0beefdad));
+    reinterpret_cast<Address>(V8_UINT64_C(0x1beefdad0beefdad));
 #else
 const Address kZapValue = reinterpret_cast<Address>(0xdeadbeed);
 const Address kHandleZapValue = reinterpret_cast<Address>(0xbaddead);
 const Address kFromSpaceZapValue = reinterpret_cast<Address>(0xbeefdad);
 #endif
 
 
 // -----------------------------------------------------------------------------
 // Forward declarations for frequently used classes
 // (sorted alphabetically)
@@ skipping 368 matching lines @@
 
   Dest dest;
   memcpy(&dest, &source, sizeof(dest));
   return dest;
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_GLOBALS_H_