diff -r ef0373b55136 -r 758a864f9613 qmake/generators/win32/msbuild_objectmodel.cpp
--- a/qmake/generators/win32/msbuild_objectmodel.cpp	Fri Sep 17 08:34:18 2010 +0300
+++ b/qmake/generators/win32/msbuild_objectmodel.cpp	Mon Oct 04 01:19:32 2010 +0300
@@ -569,7 +569,8 @@
                 UseFullPaths = _True;
                 break;
             case 'd':
-                ProgramDataBaseFileName += option+3;
+                ProgramDataBaseFileName = option+3;
+                break;
             case 'I':
                 ForcedIncludeFiles += option+3;
                 break;
@@ -1572,7 +1573,8 @@
         break;
     case 0x0034160: // /MAP[:filename]
         GenerateMapFile = _True;
-        MapFileName = option+5;
+        if (option[4] == ':')
+            MapFileName = option+5;
         break;
     case 0x164e1ef: // /MAPINFO:{EXPORTS}
         if(*(option+9) == 'E')