--- a/mkspecs/win32-msvc.net/qplatformdefs.h	Tue Jan 26 12:42:25 2010 +0200
+++ b/mkspecs/win32-msvc.net/qplatformdefs.h	Tue Feb 02 00:43:10 2010 +0200
@@ -115,8 +115,10 @@
 
 #define QT_FOPEN                ::fopen
 #ifdef QT_LARGEFILE_SUPPORT
+// 64-bit versions of fseek/ftell not always available. E.g., when linking
+// dynamically to CRT (/MT)
 #define QT_FSEEK                ::fseek
-#define QT_FTELL                ::ftell
+#define QT_FTELL                (QT_OFF_T)::ftell
 #else
 #define QT_FSEEK                ::fseek
 #define QT_FTELL                ::ftell