Is GCC dying without threads support on Windows? [closed]

Question

I need some opinion. GCC was always a very good compiler, but recently it is losing "appeal". I have just found that on Windows GCC does not have std::thread support, forcing Windows users to use another compiler because the most exciting feature is still missing.

But why really doesn't GCC still have threads support under Windows? License problems? ABI incompatibilities? (Well there are already several cross-platform libraries using multithreading: boost, POCO, SDL, wxwidgets, etc. Wouldn't it be simple to use already existing, and MIT/libpng licensed, code to fit this hole instead of shipping GCC releases with no thread support?)

Recently, looking at compiler comparisons, GCC has the widest support for C++11 features with respect to other compilers, except for the fact that on Windows this is not true because we are still lacking atomics, mutexes and threads :/

I'd like to know more about this topic, but the only thing I can find is people asking for help because:

"thread" does not exist in std namespace

Looking at tickets tracking and mail discussions of GCC/TDM-GCC, there were requests for thread support since 2009. Possible that after 4 years still no solution? What's really happening?