default_sink.cpp is missing a #if !defined(BOOST_LOG_NO_THREADS)

[Frank Heimes <drfghde@…>]

When building the trunk (23.09.2013) using VS 2013 RC, the Compiler complained about the type thread::id in line 38. From the context in the remainder of the file, it is clear IMHO, that this declaration needs to be embraced with a conditional define:

#if !defined(BOOST_LOG_NO_THREADS)
namespace aux {

// Defined in thread_id.cpp
void format_thread_id(char* buf, std::size_t size, thread::id tid);

} // namespace aux
#endif

[Andrey Semashev]

(In [85870]) Corrected compilation in single-threaded mode. Fixes #9157.