according to dvdjg it should work

Author: micwypych

tests/lib/gtest-1.8.0/googletest/include/gtest/internal/gtest-port.h

@@ -604,7 +604,7 @@ struct _RTL_CRITICAL_SECTION;
     || GTEST_OS_QNX || GTEST_OS_FREEBSD || GTEST_OS_NACL)
 #endif  // GTEST_HAS_PTHREAD
 
-#if GTEST_HAS_PTHREAD
+#if GTEST_HAS_PTHREAD && !GTEST_OS_WINDOWS_MINGW
 // gtest-port.h guarantees to #include <pthread.h> when GTEST_HAS_PTHREAD is
 // true.
 # include <pthread.h>  // NOLINT
@@ -1441,7 +1441,7 @@ void SetInjectableArgvs(const ::std::vector<testing::internal::string>*
 
 // Defines synchronization primitives.
 #if GTEST_IS_THREADSAFE
-# if GTEST_HAS_PTHREAD
+#if GTEST_HAS_PTHREAD && !GTEST_OS_WINDOWS_MINGW
 // Sleeps for (roughly) n milliseconds.  This function is only for testing
 // Google Test's own constructs.  Don't use it in user tests, either
 // directly or indirectly.
@@ -1458,7 +1458,7 @@ inline void SleepMilliseconds(int n) {
 // Notification has already been imported into the namespace.
 // Nothing to do here.
 
-# elif GTEST_HAS_PTHREAD
+# elif GTEST_HAS_PTHREAD && !GTEST_OS_WINDOWS_MINGW
 // Allows a controller thread to pause execution of newly created
 // threads until notified.  Instances of this class must be created
 // and destroyed in the controller thread.
@@ -1918,7 +1918,7 @@ class ThreadLocal : public ThreadLocalBase {
   GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadLocal);
 };
 
-# elif GTEST_HAS_PTHREAD
+# elif GTEST_HAS_PTHREAD && !GTEST_OS_WINDOWS_MINGW
 
 // MutexBase and Mutex implement mutex on pthreads-based platforms.
 class MutexBase {