diff -r dee5afe5301f -r 3f74d0d4af4c src/gui/painting/qdrawhelper_x86_p.h
--- a/src/gui/painting/qdrawhelper_x86_p.h	Mon Mar 15 12:43:09 2010 +0200
+++ b/src/gui/painting/qdrawhelper_x86_p.h	Thu Apr 08 14:19:33 2010 +0300
@@ -114,6 +114,14 @@
 void qt_bitmapblit16_sse2(QRasterBuffer *rasterBuffer, int x, int y,
                           quint32 color,
                           const uchar *src, int width, int height, int stride);
+void qt_blend_argb32_on_argb32_sse2(uchar *destPixels, int dbpl,
+                                    const uchar *srcPixels, int sbpl,
+                                    int w, int h,
+                                    int const_alpha);
+void qt_blend_rgb32_on_rgb32_sse2(uchar *destPixels, int dbpl,
+                                 const uchar *srcPixels, int sbpl,
+                                 int w, int h,
+                                 int const_alpha);
 #endif // QT_HAVE_SSE2
 
 #ifdef QT_HAVE_IWMMXT