diff -r 5dc02b23752f -r 3e2da88830cd src/corelib/global/qglobal.cpp
--- a/src/corelib/global/qglobal.cpp	Tue Jul 06 15:10:48 2010 +0300
+++ b/src/corelib/global/qglobal.cpp	Wed Aug 18 10:37:55 2010 +0300
@@ -1623,7 +1623,7 @@
   \macro Q_WS_S60
   \relates <QtGlobal>
 
-  Defined on S60.
+  Defined on S60 with the Avkon UI framework.
 
   \sa Q_WS_MAC, Q_WS_WIN, Q_WS_X11, Q_WS_QWS
  */
@@ -1814,7 +1814,6 @@
 #endif
 
 #ifdef Q_OS_SYMBIAN
-# ifdef Q_WS_S60
 static QSysInfo::S60Version cachedS60Version = QSysInfo::S60Version(-1);
 
 QSysInfo::S60Version QSysInfo::s60Version()
@@ -1886,17 +1885,6 @@
         return SV_Unknown;
     }
 }
-#else
-QSysInfo::S60Version QSysInfo::s60Version()
-{
-    return SV_S60_None;
-}
-
-QSysInfo::SymbianVersion QSysInfo::symbianVersion()
-{
-    return SV_Unknown;
-}
-# endif // ifdef Q_WS_S60
 #endif // ifdef Q_OS_SYMBIAN
 
 /*!
@@ -2518,6 +2506,19 @@
 
 // getenv is declared as deprecated in VS2005. This function
 // makes use of the new secure getenv function.
+/*!
+    \relates <QtGlobal>
+
+    Returns the value of the environment variable with name \a
+    varName. To get the variable string, use QByteArray::constData().
+
+    \note qgetenv() was introduced because getenv() from the standard
+    C library was deprecated in VC2005 (and later versions). qgetenv()
+    uses the new replacement function in VC, and calls the standard C
+    library's implementation on all other platforms.
+
+    \sa qputenv()
+*/
 QByteArray qgetenv(const char *varName)
 {
 #if defined(_MSC_VER) && _MSC_VER >= 1400
@@ -2537,6 +2538,20 @@
 #endif
 }
 
+/*!
+    \relates <QtGlobal>
+
+    This function sets the \a value of the environment variable named
+    \a varName. It will create the variable if it does not exist. It
+    returns 0 if the variable could not be set.
+
+    \note qputenv() was introduced because putenv() from the standard
+    C library was deprecated in VC2005 (and later versions). qputenv()
+    uses the replacement function in VC, and calls the standard C
+    library's implementation on all other platforms.
+
+    \sa qgetenv()
+*/
 bool qputenv(const char *varName, const QByteArray& value)
 {
 #if defined(_MSC_VER) && _MSC_VER >= 1400
@@ -2606,55 +2621,6 @@
 #endif
 }
 
-/*! \internal
-    \relates <QtGlobal>
-    \since 4.6
-
-    Seed the PRNG, but only if it has not already been seeded.
-
-    The default seed is a combination of current time, a stack address and a
-    serial counter (since thread stack addresses are re-used).
-*/
-void qsrand()
-{
-#if (defined(Q_OS_UNIX) || defined(Q_OS_WIN)) && !defined(QT_NO_THREAD)
-    SeedStorage *seedStorage = randTLS();
-    if (seedStorage) {
-        SeedStorageType *pseed = seedStorage->localData();
-        if (pseed) {
-            // already seeded
-            return;
-        }
-        seedStorage->setLocalData(pseed = new SeedStorageType);
-        // start beyond 1 to avoid the sequence reset
-        static QBasicAtomicInt serial = Q_BASIC_ATOMIC_INITIALIZER(2);
-        *pseed = QDateTime::currentDateTime().toTime_t()
-                 + quintptr(&pseed)
-                 + serial.fetchAndAddRelaxed(1);
-#if defined(Q_OS_WIN) || defined(Q_OS_SYMBIAN)
-        // for Windows and Symbian the srand function must still be called.
-        srand(*pseed);
-#endif
-    }
-
-//QT_NO_THREAD implementations
-#else
-    static unsigned int seed = 0;
-
-    if (seed)
-        return;
-
-#if defined(Q_OS_SYMBIAN)
-    seed = Math::Random();
-#elif defined(Q_OS_WIN)
-    seed = GetTickCount();
-#else
-    seed = quintptr(&seed) + QDateTime::currentDateTime().toTime_t();
-#endif
-    srand(seed);
-#endif // defined(Q_OS_UNIX) || defined(Q_OS_WIN)) && !defined(QT_NO_THREAD)
-}
-
 /*!
     \relates <QtGlobal>
     \since 4.2