Fix building with GCC 3.x

include/v8.h

 // Copyright 2012 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 45 matching lines @@
 #define V8EXPORT __declspec(dllexport)
 #elif USING_V8_SHARED
 #define V8EXPORT __declspec(dllimport)
 #else
 #define V8EXPORT
 #endif  // BUILDING_V8_SHARED
 
 #else  // _WIN32
 
 // Setup for Linux shared library export.
-#if defined(__GNUC__) && (__GNUC__ >= 4) && defined(V8_SHARED)
+#if defined(__GNUC__) && ((__GNUC__ >= 4) || \
+    (__GNUC__ == 3 && __GNUC_MINOR__ >= 3)) && defined(V8_SHARED)
 #ifdef BUILDING_V8_SHARED
 #define V8EXPORT __attribute__ ((visibility("default")))
 #else
 #define V8EXPORT
 #endif
-#else  // defined(__GNUC__) && (__GNUC__ >= 4)
+#else
 #define V8EXPORT
-#endif  // defined(__GNUC__) && (__GNUC__ >= 4)
+#endif
 
 #endif  // _WIN32
 
 /**
  * The v8 JavaScript engine.
  */
 namespace v8 {
 
 class Context;
 class String;
@@ skipping 4450 matching lines @@
 
 
 }  // namespace v8
 
 
 #undef V8EXPORT
 #undef TYPE_CHECK
 
 
 #endif  // V8_H_