Improve the fix for r18344.

src/assembler.cc

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // 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.
 //
@@ skipping 1370 matching lines @@
 }
 
 ExternalReference ExternalReference::address_of_regexp_stack_memory_size(
     Isolate* isolate) {
   return ExternalReference(isolate->regexp_stack()->memory_size_address());
 }
 
 #endif  // V8_INTERPRETED_REGEXP
 
 
-static double math_log_double(double x) {
-  return log(x);
-}
-
-
 ExternalReference ExternalReference::math_log_double_function(
     Isolate* isolate) {
+  typedef double (*d2d)(double x);
   return ExternalReference(Redirect(isolate,
-                                    FUNCTION_ADDR(math_log_double),
+                                    FUNCTION_ADDR(static_cast<d2d>(log)),
                                     BUILTIN_FP_CALL));
 }
 
 
 ExternalReference ExternalReference::math_exp_constants(int constant_index) {
   ASSERT(math_exp_data_initialized);
   return ExternalReference(
       reinterpret_cast<void*>(math_exp_constants_array + constant_index));
 }
 
@@ skipping 183 matching lines @@
     assembler_->RecordRelocInfo(RelocInfo::POSITION, state_.current_position);
     state_.written_position = state_.current_position;
     written = true;
   }
 
   // Return whether something was written.
   return written;
 }
 
 } }  // namespace v8::internal