More minor patches

Hi,

Having an amd64 machine, I noticed the 9.53 release of Amaya fails to
build in 64 bits mode. The attached trivial patch fixes the issue.

I also noticed that your config.sub and config.guess files are way
outdated (April 2001) and certainly don't support a few recent
architectures (including amd64). I strongly suggest you update those
files. This remark is also valid for the various snapshots you use and
build statically (redland, raptor, Mesa, libWWW).

Regards,

Regis