Fixing compiler warnings

[Petteri Räty]

This silences some QA warnings given by GCC. I don't have access to
Solaris so it would probably be safest to test there before committing
although man gettimeofday is claiming that the function is quite standard:

CONFORMING TO
       SVr4, 4.3BSD.  POSIX.1-2001 describes gettimeofday() but not
settimeofday().

I haven't signed the SCA but this is hardly copyrightable.

Regards,
Petteri
--
Gentoo/Java project lead
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