1 files changed, 5 insertions, 3 deletions

diff --git a/qmake/tools/qmutex_unix.cpp b/qmake/tools/qmutex_unix.cpp
index c861b2d..3eb59cf 100644
--- a/qmake/tools/qmutex_unix.cpp
+++ b/qmake/tools/qmutex_unix.cpp
@@ -1,95 +1,96 @@
 /****************************************************************************
 ** $Id$
 **
 ** QMutex class for Unix
 **
 ** Created : 20010725
 **
 ** Copyright (C) 1992-2002 Trolltech AS.  All rights reserved.
 **
 ** This file is part of the tools module of the Qt GUI Toolkit.
 **
 ** This file may be distributed under the terms of the Q Public License
 ** as defined by Trolltech AS of Norway and appearing in the file
 ** LICENSE.QPL included in the packaging of this file.
 **
 ** This file may be distributed and/or modified under the terms of the
 ** GNU General Public License version 2 as published by the Free Software
 ** Foundation and appearing in the file LICENSE.GPL included in the
 ** packaging of this file.
 **
 ** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
 ** licenses may use this file in accordance with the Qt Commercial License
 ** Agreement provided with the Software.
 **
 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 **
 ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
 **   information about Qt Commercial License Agreements.
 ** See http://www.trolltech.com/qpl/ for QPL licensing information.
 ** See http://www.trolltech.com/gpl/ for GPL licensing information.
 **
 ** Contact info@trolltech.com if any conditions of this licensing are
 ** not clear to you.
 **
 **********************************************************************/
 
 #if defined(QT_THREAD_SUPPORT)
 
 #include "qplatformdefs.h"
 
 typedef pthread_mutex_t     Q_MUTEX_T;
 
 // POSIX threads mutex types
 #if ((defined(PTHREAD_MUTEX_RECURSIVE) && defined(PTHREAD_MUTEX_DEFAULT)) || \
-     defined(Q_OS_FREEBSD)) && !defined(Q_OS_UNIXWARE) && !defined(Q_OS_SOLARIS)
-    // POSIX 1003.1c-1995 - We love this OS
+     defined(Q_OS_FREEBSD)) && !defined(Q_OS_UNIXWARE) && !defined(Q_OS_SOLARIS) && \
+    !defined(Q_OS_MAC)
+// POSIX 1003.1c-1995 - We love this OS
 #  define Q_MUTEX_SET_TYPE(a, b) pthread_mutexattr_settype((a), (b))
 #  if defined(QT_CHECK_RANGE)
 #    define Q_NORMAL_MUTEX_TYPE PTHREAD_MUTEX_ERRORCHECK
 #  else
 #    define Q_NORMAL_MUTEX_TYPE PTHREAD_MUTEX_DEFAULT
 #  endif
 #  define Q_RECURSIVE_MUTEX_TYPE PTHREAD_MUTEX_RECURSIVE
 #elif defined(MUTEX_NONRECURSIVE_NP) && defined(MUTEX_RECURSIVE_NP)
 // POSIX 1003.4a pthreads draft extensions
 #  define Q_MUTEX_SET_TYPE(a, b) pthread_mutexattr_setkind_np((a), (b));
 #  define Q_NORMAL_MUTEX_TYPE MUTEX_NONRECURSIVE_NP
 #  define Q_RECURSIVE_MUTEX_TYPE MUTEX_RECURSIVE_NP
 #else
 // Unknown mutex types - skip them
 #  define Q_MUTEX_SET_TYPE(a, b)
 #  undef  Q_NORMAL_MUTEX_TYPE
 #  undef  Q_RECURSIVE_MUTEX_TYPE
 #endif
 
 #include "qmutex.h"
 #include "qmutex_p.h"
 
 #include <errno.h>
 #include <string.h>
 
 
 // Private class declarations
 
 class QRealMutexPrivate : public QMutexPrivate {
 public:
     QRealMutexPrivate(bool = FALSE);
 
     void lock();
     void unlock();
     bool locked();
     bool trylock();
     int type() const;
 
     bool recursive;
 };
 
 #ifndef    Q_RECURSIVE_MUTEX_TYPE
 class QRecursiveMutexPrivate : public QMutexPrivate
 {
 public:
     QRecursiveMutexPrivate();
     ~QRecursiveMutexPrivate();
 
@@ -616,72 +617,73 @@ bool QMutex::tryLock()
     object is destroyed (when the function returns since \c locker is
     an auto variable).
 
     The same principle applies to code that throws and catches
     exceptions. An exception that is not caught in the function that
     has locked the mutex has no way of unlocking the mutex before the
     exception is passed up the stack to the calling function.
 
     QMutexLocker also provides a mutex() member function that returns
     the mutex on which the QMutexLocker is operating. This is useful
     for code that needs access to the mutex, such as
     QWaitCondition::wait(). For example:
 
     \code
     class SignalWaiter
     {
     private:
         QMutexLocker locker;
 
     public:
         SignalWaiter( QMutex *mutex )
             : locker( mutex )
         {
         }
 
         void waitForSignal()
         {
             ...
             ...
             ...
 
             while ( ! signalled )
                 waitcondition.wait( locker.mutex() );
 
             ...
             ...
             ...
         }
     };
     \endcode
 
     \sa QMutex, QWaitCondition
 */
 
 /*!
     \fn QMutexLocker::QMutexLocker( QMutex *mutex )
 
     Constructs a QMutexLocker and locks \a mutex. The mutex will be
-    unlocked when the QMutexLocker is destroyed.
+    unlocked when the QMutexLocker is destroyed. If \a mutex is zero,
+    QMutexLocker does nothing.
 
     \sa QMutex::lock()
 */
 
 /*!
     \fn QMutexLocker::~QMutexLocker()
 
     Destroys the QMutexLocker and unlocks the mutex which was locked
     in the constructor.
 
     \sa QMutexLocker::QMutexLocker(), QMutex::unlock()
 */
 
 /*!
     \fn QMutex *QMutexLocker::mutex() const
 
     Returns a pointer to the mutex which was locked in the
     constructor.
 
     \sa QMutexLocker::QMutexLocker()
 */
 
 #endif // QT_THREAD_SUPPORT