don't use abi::__cxa_demangle in uclibc builds

Source/wtf/Assertions.cpp

 /*
  * Copyright (C) 2003, 2006, 2007 Apple Inc.  All rights reserved.
  * Copyright (C) 2007-2009 Torch Mobile, Inc.
  * Copyright (C) 2011 University of Szeged. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 249 matching lines @@
 
     WTFGetBacktrace(samples, &frames);
     WTFPrintBacktrace(samples + framesToSkip, frames - framesToSkip);
 }
 
 void WTFPrintBacktrace(void** stack, int size)
 {
     for (int i = 0; i < size; ++i) {
         const char* mangledName = 0;
         char* cxaDemangled = 0;
-#if OS(MACOSX) || OS(LINUX)
+#if OS(MACOSX) || OS(LINUX) && !defined(__UCLIBC__)

[jochen (gone - plz use gerrit), 2014/04/08 07:51:04]

can you use brackets to make the condition clear?

[Mostyn Bramley-Moore, 2014/04/08 07:56:38]

Done.

         Dl_info info;
         if (dladdr(stack[i], &info) && info.dli_sname)
             mangledName = info.dli_sname;
         if (mangledName)
             cxaDemangled = abi::__cxa_demangle(mangledName, 0, 0, 0);
 #endif
         const int frameNumber = i + 1;
         if (mangledName || cxaDemangled)
             printf_stderr_common("%-3d %p %s\n", frameNumber, stack[i], cxaDemangled ? cxaDemangled : mangledName);
         else
@@ skipping 97 matching lines @@
 
 void WTFLogAlways(const char* format, ...)
 {
     va_list args;
     va_start(args, format);
     vprintf_stderr_with_trailing_newline(format, args);
     va_end(args);
 }
 
 } // extern "C"