8b480cb fix a few of the warnings given by newer versions of gcc

Authored and Committed by Damien Doligez 11 years ago
    fix a few of the warnings given by newer versions of gcc
    
    git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@13320 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
    
        
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