Fixed d8 on leopard.

src/platform-linux.cc

 // 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 167 matching lines @@
     return n;
   }
 }
 
 
 void OS::StrNCpy(Vector<char> dest, const char* src, size_t n) {
   strncpy(dest.start(), src, n);
 }
 
 
-char *OS::StrDup(const char* str) {
+char* OS::StrDup(const char* str) {
   return strdup(str);
 }
 
 
+char* OS::StrNDup(const char* str, size_t n) {
+  return strndup(str, n);
+}
+
+
 double OS::nan_value() {
   return NAN;
 }
 
 
 int OS::ActivationFrameAlignment() {
   // No constraint on Linux.
   return 0;
 }
 
@@ skipping 481 matching lines @@
   }
 
   // This sampler is no longer the active sampler.
   active_sampler_ = NULL;
   active_ = false;
 }
 
 #endif  // ENABLE_LOGGING_AND_PROFILING
 
 } }  // namespace v8::internal