--- a/src/gui/text/qfontdatabase.cpp	Mon May 03 13:17:34 2010 +0300
+++ b/src/gui/text/qfontdatabase.cpp	Fri May 14 16:40:13 2010 +0300
@@ -83,7 +83,7 @@
 
 #define SMOOTH_SCALABLE 0xffff
 
-extern int qt_defaultDpiY(); // in qfont.cpp
+Q_GUI_EXPORT extern int qt_defaultDpiY(); // in qfont.cpp
 
 bool qt_enable_test_font = false;