Match changes from glibc 2.2 (?)

- #define status as __status
- #define spinlock as __spinlock

SheepShaver/src/Unix/Linux/sheepthreads.c

@@ -51,6 +51,8 @@ extern int test_and_set(int *var, int val);
 extern int __clone(int (*fn)(void *), void *, int, void *);
 
 /* struct sem_t */
+#define status __status
+#define spinlock __spinlock
 #define sem_lock __sem_lock
 #define sem_value __sem_value
 #define sem_waiting __sem_waiting