Index: trunk/include/sh_pthread.h
===================================================================
--- trunk/include/sh_pthread.h	(revision 130)
+++ trunk/include/sh_pthread.h	(revision 130)
@@ -0,0 +1,39 @@
+#ifndef SH_PTHREAD_H
+#define SH_PTHREAD_H
+
+#ifdef HAVE_PTHREAD
+
+#include <pthread.h>
+#define SH_MUTEX(M)				pthread_mutex_t M
+#define SH_MUTEX_INIT(M,I)			pthread_mutex_t M = I
+#define SH_MUTEX_STATIC(M,I)			static pthread_mutex_t M = I
+#define SH_MUTEX_EXTERN(M)			extern pthread_mutex_t M
+
+#define SH_MUTEX_LOCK(M)						   \
+	do {                                                               \
+                int oldtype;                                               \
+		pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, &oldtype);  \
+                pthread_cleanup_push(pthread_mutex_unlock, (void *) &(M)); \
+                pthread_mutex_lock(&(M))
+
+
+#define SH_MUTEX_UNLOCK(M,C)						   \
+		pthread_cleanup_pop(1);                                    \
+                pthread_setcanceltype(oldtype, NULL);                      \
+	} while (0)
+
+
+#else
+
+#define SH_MUTEX(M)				void *SH_MUTEX_DUMMY_ ## M
+#define SH_MUTEX_INIT(M,I)			extern void *SH_MUTEX_DUMMY_ ## M
+#define SH_MUTEX_STATIC(M,I)			extern void *SH_MUTEX_DUMMY_ ## M
+#define SH_MUTEX_EXTERN(M)			extern void *SH_MUTEX_DUMMY_ ## M
+#define SH_MUTEX_LOCK(M)			((void)0)
+#define SH_MUTEX_UNLOCK(M)			((void)0)
+
+/* #ifdef HAVE_PTHREAD */
+#endif
+
+/* #ifndef SH_PTHREAD_H */
+#endif