Warning cleanups for ecpg tests. Avoid doing pointer arithmetic on void *,

Neil Conway <neilc@samurai.com>

Commit: 4802bb57a6d5331f32bc14bb196e397021fece1c
Author: Neil Conway <neilc@samurai.com>
Date: 2005-06-30T07:08:59Z
Releases: 8.1.0
Warning cleanups for ecpg tests. Avoid doing pointer arithmetic on void *,
remove old-style function declarations, and mark a function "static".
There are some remaining warnings, but this fixes most of them, anyway.

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