Merge branch 'qt-4.7-from-4.6' of scm.dev.nokia.troll.no:qt/qt-integration into 4.7-integration

* 'qt-4.7-from-4.6' of scm.dev.nokia.troll.no:qt/qt-integration: (69 commits)
  re-add overriding of tool paths to configure
  fix regexp
  Support linked fonts (.ltt) from standard font locations.
  fix path separators in install targets for MinGW+sh
  fix QMAKE_QMAKE path separator under mingw+sh in the qmake spec
  define qtPrepareTool() function and use it throughout
  QS60Style: In S60 3.x and 5.0 Qt itemviews behaviour is not nativelike
  QNAM HTTP: And one more testcase
  QNetworkAccessManager: Backends were tried in wrong order
  Fix QUrl::isValid if the host contains invalid caracter.
  Fix anomaly demo control strip icon placement
  QUrl: parsing of host name with an undercore.
  Fixed race condition compiling xmlpatterns tests.
  Remove qdbusserver from tests/auto/dbus.pro
  QNAM HTTP: Preemptive anti crash if() statement
  QNAM HTTP: More testcases
  Fixing compiling issues.
  Remove garbage test.
  OpenVG blending modes from VG_KHR_advanced_blending extension
  Fix spurious mouse click when dismissing a native menu
  ...

1 files changed, 5 insertions, 0 deletions

diff --git a/src/opengl/qpaintengine_opengl.cpp b/src/opengl/qpaintengine_opengl.cpp
index 08a50cb..28d37bc 100644
--- a/src/opengl/qpaintengine_opengl.cpp
+++ b/src/opengl/qpaintengine_opengl.cpp
@@ -1451,6 +1451,11 @@ bool QOpenGLPaintEngine::end()
     d->device->endPaint();
     qt_mask_texture_cache()->maintainCache();
 
+#if defined(Q_WS_X11)
+    // clear out the references we hold for textures bound with the
+    // texture_from_pixmap extension
+    ctx->d_func()->boundPixmaps.clear();
+#endif
     return true;
 }