Clean up unused constant globals

base/debug/stack_trace_posix.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/debug/stack_trace.h"
 
 #include <errno.h>
 #include <execinfo.h>
 #include <fcntl.h>
 #include <signal.h>
@@ skipping 25 matching lines @@
 #include "base/third_party/symbolize/symbolize.h"
 #endif
 
 namespace base {
 namespace debug {
 
 namespace {
 
 volatile sig_atomic_t in_signal_handler = 0;
 
+#if !defined(USE_SYMBOLIZE) && defined(_GLIBCXX__)

[Nico, 2013/10/03 19:57:12]

Err, this should be __GLIBCXX__ (note two leading underscores)

 // The prefix used for mangled symbols, per the Itanium C++ ABI:
 // http://www.codesourcery.com/cxx-abi/abi.html#mangling
 const char kMangledSymbolPrefix[] = "_Z";
 
 // Characters that can be used for symbols, generated by Ruby:
 // (('a'..'z').to_a+('A'..'Z').to_a+('0'..'9').to_a + ['_']).join
 const char kSymbolCharacters[] =
     "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_";
+#endif  // !defined(USE_SYMBOLIZE) && defined(_GLIBCXX__)
 
 #if !defined(USE_SYMBOLIZE)
 // Demangles C++ symbols in the given text. Example:
 //
 // "out/Debug/base_unittests(_ZN10StackTraceC1Ev+0x20) [0x817778c]"
 // =>
 // "out/Debug/base_unittests(StackTrace::StackTrace()+0x20) [0x817778c]"
 void DemangleSymbols(std::string* text) {
   // Note: code in this function is NOT async-signal safe (std::string uses
   // malloc internally).
@@ skipping 483 matching lines @@
     *ptr = *start;
     *start++ = ch;
   }
   return buf;
 }
 
 }  // namespace internal
 
 }  // namespace debug
 }  // namespace base