MinGW workaround with USE_github_com_meganz_mingw_std_threads

include/nana/std_condition_variable.hpp

@@ -3,10 +3,14 @@
 #include <nana/config.hpp>
 
 #if defined(STD_THREAD_NOT_SUPPORTED)
+#if defined(USE_github_com_meganz_mingw_std_threads)
+    #include <mingw.condition_variable.h>
+#else
 #include <boost/thread/condition_variable.hpp>
 namespace std
 {
     typedef boost::condition_variable condition_variable;
 }
-#endif
+#endif  // (USE_github_com_meganz_mingw_std_threads)
+#endif // (STD_THREAD_NOT_SUPPORTED)
 #endif // NANA_STD_CONDITION_VARIABLE_HPP

include/nana/std_mutex.hpp

@@ -3,6 +3,20 @@
 #include <nana/config.hpp>
 
 #if defined(STD_THREAD_NOT_SUPPORTED)
+
+#if defined(USE_github_com_meganz_mingw_std_threads)
+#include <windows.h>
+#include <mutex>
+#include <condition_variable>
+#include <thread>
+#include <pthread.h>
+#include <errno.h>
+#include <cstdio>
+// http://lxr.free-electrons.com/source/include/uapi/asm-generic/errno.h#L53
+#define EPROTO          71      /* Protocol error */
+#include <mingw.thread.h>
+#include <mingw.mutex.h>
+#else
 #include <boost/thread/mutex.hpp>
 #include <boost/thread/recursive_mutex.hpp>
 #include <boost/thread/locks.hpp>
@@ -18,5 +32,6 @@ namespace std
     typedef boost::mutex mutex;
     typedef boost::recursive_mutex recursive_mutex;
 }
-#endif
+#endif  // (USE_github_com_meganz_mingw_std_threads)
+#endif // (STD_THREAD_NOT_SUPPORTED)
 #endif // NANA_STD_MUTEX_HPP

include/nana/std_thread.hpp

@@ -3,11 +3,15 @@
 #include <nana/config.hpp>
 
 #if defined(STD_THREAD_NOT_SUPPORTED)
+
+#if defined(USE_github_com_meganz_mingw_std_threads)
+#include <mingw.thread.h>
+#else
 #include <boost/thread.hpp>
 namespace std
 {
     typedef boost::thread thread;
 }
-#endif
-
+#endif  // (USE_github_com_meganz_mingw_std_threads)
+#endif // (STD_THREAD_NOT_SUPPORTED)
 #endif // NANA_STD_THREAD_HPP