diff -r 31a43d94cc26 -r 851de24ecb61 src/VersionDictionary.cpp
--- a/src/VersionDictionary.cpp	Sun Sep 20 15:14:12 2009 -0700
+++ b/src/VersionDictionary.cpp	Sun Sep 20 21:25:47 2009 -0700
@@ -127,7 +127,7 @@
             off_t pos = _file->setPositionToEnd(sizeof(VersionDictionary::Trailer));
             if (pos < 0 || (pos & 0x03) || pos > UINT32_MAX)
                 throw File::Error(ERANGE, "No trailer found in file (wrong EOF)");
-            trailerPos = pos;
+            trailerPos = (FilePosition)pos;
         }
         
         // Read & verify trailer:
@@ -201,7 +201,7 @@
         // Lock the file now, seek to the end, and make sure it's been prepared with a header,
         // since FilePositions of 0 and 1 are reserved.
         File::Lock lock(dstFile);
-        const FilePosition startPos = dstFile->setPositionToEnd();
+        const FilePosition startPos = (FilePosition) dstFile->setPositionToEnd();
         if (startPos <= 1)
             throw File::Error(ERANGE, "Cannot write VersionDictionary to empty file");