fixincludes (str{len,spn,cspn} return value): Handle different layout on sysV88.

        * fixincludes (str{len,spn,cspn} return value): Handle different
        layout on sysV88.
        (hypot): Provide a fake for hypot which is broken on
        m88k-motorola-sysv3.

From-SVN: r17062