--- SheepShaver/src/Unix/sysdeps.h	2004/01/26 13:52:31	1.23
+++ SheepShaver/src/Unix/sysdeps.h	2004/06/15 21:37:22	1.33
@@ -44,6 +44,10 @@
 #include <string.h>
 #include <signal.h>
 
+#ifdef HAVE_PTHREADS
+# include <pthread.h>
+#endif
+
 #ifdef HAVE_FCNTL_H
 # include <fcntl.h>
 #endif
@@ -68,8 +72,6 @@
 #define POWERPC_ROM 1
 
 #if EMULATED_PPC
-// Handle interrupts asynchronously?
-#define ASYNC_IRQ 0
 // Mac ROM is write protected when banked memory is used
 #if REAL_ADDRESSING || DIRECT_ADDRESSING
 # define ROM_IS_WRITE_PROTECTED 0
@@ -78,12 +80,21 @@
 # define ROM_IS_WRITE_PROTECTED 1
 #endif
 // Configure PowerPC emulator
-#define PPC_CHECK_INTERRUPTS (ASYNC_IRQ ? 0 : 1)
+#define PPC_REENTRANT_JIT 1
+#define PPC_CHECK_INTERRUPTS 1
 #define PPC_DECODE_CACHE 1
 #define PPC_FLIGHT_RECORDER 1
 #define PPC_PROFILE_COMPILE_TIME 0
 #define PPC_PROFILE_GENERIC_CALLS 0
 #define KPX_MAX_CPUS 1
+#if ENABLE_DYNGEN
+// Don't bother with predecode cache when using JIT
+#define PPC_ENABLE_JIT 1
+#undef  PPC_DECODE_CACHE
+#endif
+#if defined(__i386__)
+#define DYNGEN_ASM_OPTS 1
+#endif
 #else
 // Mac ROM is write protected
 #define ROM_IS_WRITE_PROTECTED 1
@@ -243,15 +254,15 @@ static inline int testandset(volatile in
 }
 #endif
 
-#ifdef __i386__
+/* FIXME: SheepShaver occasionnally hangs with those locks */
+#if 0 && (defined(__i386__) || defined(__x86_64__))
 #define HAVE_TEST_AND_SET 1
 static inline int testandset(volatile int *p)
 {
-	int ret;
-	long int readval;
+	long int ret;
 	/* Note: the "xchg" instruction does not need a "lock" prefix */
-	__asm__ __volatile__("xchgl %0, %1"
-						 : "=r" (ret), "=m" (*p), "=a" (readval)
+	__asm__ __volatile__("xchgl %k0, %1"
+						 : "=r" (ret), "=m" (*p)
 						 : "0" (1), "m" (*p)
 						 : "memory");
 	return ret;
@@ -323,12 +334,12 @@ static inline int testandset(volatile in
 
 #endif /* __GNUC__ */
 
-#if HAVE_TEST_AND_SET
-#define HAVE_SPINLOCKS 1
 typedef volatile int spinlock_t;
 
 static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
 
+#if HAVE_TEST_AND_SET
+#define HAVE_SPINLOCKS 1
 static inline void spin_lock(spinlock_t *lock)
 {
 	while (testandset(lock));
@@ -343,6 +354,19 @@ static inline int spin_trylock(spinlock_
 {
 	return !testandset(lock);
 }
+#else
+static inline void spin_lock(spinlock_t *lock)
+{
+}
+
+static inline void spin_unlock(spinlock_t *lock)
+{
+}
+
+static inline int spin_trylock(spinlock_t *lock)
+{
+	return 1;
+}
 #endif
 
 // Time data type for Time Manager emulation
@@ -356,8 +380,10 @@ typedef struct timeval tm_time_t;
 extern uint64 GetTicks_usec(void);
 extern void Delay_usec(uint32 usec);
 
+#if defined(HAVE_PTHREADS) || (defined(__linux__) && defined(__powerpc__))
 // Setup pthread attributes
 extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
+#endif
 
 // Various definitions
 typedef struct rgb_color {