fix misspelled PTHREAD_CANCELED constant
diff --git a/include/pthread.h b/include/pthread.h
index 7633366..43754dd 100644
--- a/include/pthread.h
+++ b/include/pthread.h
@@ -65,7 +65,7 @@
 #define PTHREAD_CANCEL_DEFERRED 0
 #define PTHREAD_CANCEL_ASYNCHRONOUS 1
 
-#define PTHREAD_CANCELLED ((void *)-1)
+#define PTHREAD_CANCELED ((void *)-1)
 
 
 #define PTHREAD_BARRIER_SERIAL_THREAD (-1)