WaE: compare unsigned values.

(cherry picked from commit e215b94aea58527bf76db44f0985b467502d457b)
diff --git a/sw/source/core/access/accmap.cxx b/sw/source/core/access/accmap.cxx
index cdb73ca..ac86219 100644
--- a/sw/source/core/access/accmap.cxx
+++ b/sw/source/core/access/accmap.cxx
@@ -1490,7 +1490,7 @@ void SwAccessibleMap::DoInvalidateShapeSelection(sal_Bool bInvalidateFocusMode /
            ++pShape;
        }

        const int SELECTION_WITH_NUM =10;
        const unsigned int SELECTION_WITH_NUM = 10;
        if (vecxShapeAdd.size() > SELECTION_WITH_NUM )
        {
             uno::Reference< XAccessible > xDoc = GetDocumentView( );