diff --git a/common/pthreads_cross.h b/common/pthreads_cross.h
new file mode 100644
index 0000000..897a333
--- /dev/null
+++ b/common/pthreads_cross.h
@@ -0,0 +1,81 @@
+/**
+Copyright John Schember <john@nachtimwald.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+#ifndef __CPTHREAD_H__
+#define __CPTHREAD_H__
+
+#ifdef _WIN32
+#include <stdbool.h>
+#include <windows.h>
+#else
+#include <pthread.h>
+#include <sched.h>
+#endif
+
+#ifdef _WIN32
+
+typedef CRITICAL_SECTION pthread_mutex_t;
+typedef void pthread_mutexattr_t;
+typedef void pthread_attr_t;
+typedef void pthread_condattr_t;
+typedef void pthread_rwlockattr_t;
+typedef HANDLE pthread_t;
+typedef CONDITION_VARIABLE pthread_cond_t;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+int pthread_create(pthread_t *thread, pthread_attr_t *attr, void *(*start_routine)(void *), void *arg);
+int pthread_join(pthread_t thread, void **value_ptr);
+int pthread_detach(pthread_t);
+
+int pthread_mutex_init(pthread_mutex_t *mutex, pthread_mutexattr_t *attr);
+int pthread_mutex_destroy(pthread_mutex_t *mutex);
+int pthread_mutex_lock(pthread_mutex_t *mutex);
+int pthread_mutex_unlock(pthread_mutex_t *mutex);
+
+int pthread_cond_init(pthread_cond_t *cond, pthread_condattr_t *attr);
+int pthread_cond_destroy(pthread_cond_t *cond);
+int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex);
+int pthread_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex, const struct timespec *abstime);
+int pthread_cond_signal(pthread_cond_t *cond);
+int pthread_cond_broadcast(pthread_cond_t *cond);
+
+int sched_yield(void);
+#ifdef __cplusplus
+}
+#endif
+#endif
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+unsigned int pcthread_get_num_procs();
+
+void ms_to_timespec(struct timespec *ts, unsigned int ms);
+unsigned int timespec_to_ms(const struct timespec *abstime);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __CPTHREAD_H__ */