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diff --git a/profiling/pthread_everywhere.h b/profiling/pthread_everywhere.h
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+// Copyright 2017 The Gemmlowp Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// pthread_everywhere.h: Either includes <pthread.h> or implements a
+// subset of pthread functionality on top of C++11 <thread> for portability.
+
+#ifndef GEMMLOWP_PROFILING_PTHREAD_EVERYWHERE_H_
+#define GEMMLOWP_PROFILING_PTHREAD_EVERYWHERE_H_
+
+#include "pthread_everywhere.h"
+
+#ifndef _WIN32
+#define GEMMLOWP_USE_PTHREAD
+#endif
+
+#if defined GEMMLOWP_USE_PTHREAD
+#include <pthread.h>
+#else
+// Implement a small subset of pthread on top of C++11 threads.
+// The function signatures differ from true pthread functions in two ways:
+//  - True pthread functions return int error codes, ours return void.
+//    Rationale: the c++11 <thread> equivalent functions return void
+//    and use exceptions to report errors; we don't want to deal with
+//    exceptions in this code, so we couldn't meaningfully return errors
+//    in the polyfill. Also, the gemmlowp code using these pthread functions
+//    never checks their return values anyway.
+//  - True pthread *_create/*_init functions take pointers to 'attribute'
+//    structs; ours take nullptr_t. That is because gemmlowp always passes
+//    nullptr at the moment, so any support we would code for non-null
+//    attribs would be unused.
+#include <thread>
+#include <mutex>
+#include <condition_variable>
+#include <cstddef>
+namespace gemmlowp {
+using pthread_t = std::thread*;
+using pthread_mutex_t = std::mutex*;
+using pthread_cond_t = std::condition_variable*;
+inline void pthread_create(pthread_t* thread, std::nullptr_t, 
+  void *(*start_routine) (void *), void *arg) {
+  *thread = new std::thread(start_routine, arg);
+}
+inline void pthread_join(pthread_t thread, std::nullptr_t) {
+  thread->join();
+}
+inline void pthread_mutex_init(pthread_mutex_t *mutex, std::nullptr_t) {
+  *mutex = new std::mutex;
+}
+inline void pthread_mutex_lock(pthread_mutex_t* mutex) {
+  (*mutex)->lock();
+}
+inline void pthread_mutex_unlock(pthread_mutex_t* mutex) {
+  (*mutex)->unlock();
+}
+inline void pthread_mutex_destroy(pthread_mutex_t *mutex) {
+  delete *mutex;
+}
+inline void pthread_cond_init(pthread_cond_t *cond, std::nullptr_t) {
+  *cond = new std::condition_variable;
+}
+inline void pthread_cond_signal(pthread_cond_t* cond) {
+  (*cond)->notify_one();
+}
+inline void pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex) {
+  std::unique_lock<std::mutex> lock(**mutex, std::adopt_lock);
+  (*cond)->wait(lock);
+  // detach lock from mutex so when we leave this conext
+  // the lock is not released
+  lock.release();
+}
+inline void pthread_cond_destroy(pthread_cond_t *cond) {
+  delete *cond;
+}
+}  // end namespace gemmlowp
+#endif
+
+#endif  // GEMMLOWP_PROFILING_PTHREAD_EVERYWHERE_H_
+\ No newline at end of file