+#ifdef HAVE_THREADS
+#include <pthread.h>
+#ifdef WIN32
+#define pthread_self_tid() pthread_self().p
+#else
+#define pthread_self_tid() pthread_self()
+#endif
+#define THREAD_MUTEX_INIT(var) { \
+ pthread_mutexattr_t mutex_attr; \
+ pthread_mutexattr_init(&mutex_attr);\
+ pthread_mutexattr_settype(&mutex_attr, PTHREAD_MUTEX_RECURSIVE_NP);\
+ pthread_mutex_init(&var, &mutex_attr); \
+}
+#define THREAD_MUTEX_INIT_TYPE(var, type) { \
+ pthread_mutexattr_t mutex_attr; \
+ pthread_mutexattr_init(&mutex_attr);\
+ pthread_mutexattr_settype(&mutex_attr, type);\
+ pthread_mutex_init(&var, &mutex_attr); \
+}
+#define SYNCHRONIZE(var) pthread_mutex_lock(&var)
+#define SET_SYNCHRONIZE(var) pthread_mutex_trylock(&var)
+#define DESYNCHRONIZE(var) pthread_mutex_unlock(&var)
+#else
+#define THREAD_MUTEX_INIT(var)
+#define SYNCHRONIZE(var)
+#define DESYNCHRONIZE(var)
+#endif