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-rw-r--r--macosx/tclMacOSXNotify.c20
1 files changed, 13 insertions, 7 deletions
diff --git a/macosx/tclMacOSXNotify.c b/macosx/tclMacOSXNotify.c
index 23b858b..af2fa65 100644
--- a/macosx/tclMacOSXNotify.c
+++ b/macosx/tclMacOSXNotify.c
@@ -13,7 +13,7 @@
* See the file "license.terms" for information on usage and redistribution of
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
- * RCS: @(#) $Id: tclMacOSXNotify.c,v 1.11 2006/08/21 03:50:50 das Exp $
+ * RCS: @(#) $Id: tclMacOSXNotify.c,v 1.12 2007/01/19 01:03:59 das Exp $
*/
#include "tclInt.h"
@@ -168,12 +168,18 @@ static int receivePipe = -1; /* Output end of triggerPipe */
* Support for weakly importing spinlock API.
*/
#define WEAK_IMPORT_SPINLOCKLOCK
-extern void OSSpinLockLock(OSSpinLock *lock) WEAK_IMPORT_ATTRIBUTE;
-extern void OSSpinLockUnlock(OSSpinLock *lock) WEAK_IMPORT_ATTRIBUTE;
-extern void _spin_lock(OSSpinLock *lock) WEAK_IMPORT_ATTRIBUTE;
-extern void _spin_unlock(OSSpinLock *lock) WEAK_IMPORT_ATTRIBUTE;
-static void (* lockLock)(OSSpinLock *lock) = NULL;
-static void (* lockUnlock)(OSSpinLock *lock) = NULL;
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
+#define VOLATILE volatile
+#else
+#define VOLATILE
+#endif
+extern void OSSpinLockLock(VOLATILE OSSpinLock *lock) WEAK_IMPORT_ATTRIBUTE;
+extern void OSSpinLockUnlock(VOLATILE OSSpinLock *lock) WEAK_IMPORT_ATTRIBUTE;
+extern void _spin_lock(VOLATILE OSSpinLock *lock) WEAK_IMPORT_ATTRIBUTE;
+extern void _spin_unlock(VOLATILE OSSpinLock *lock) WEAK_IMPORT_ATTRIBUTE;
+static void (* lockLock)(VOLATILE OSSpinLock *lock) = NULL;
+static void (* lockUnlock)(VOLATILE OSSpinLock *lock) = NULL;
+#undef VOLATILE
static pthread_once_t spinLockLockInitControl = PTHREAD_ONCE_INIT;
static void SpinLockLockInit(void) {
lockLock = OSSpinLockLock != NULL ? OSSpinLockLock : _spin_lock;