Regarding x86_64 CLAM and difficulties building, Michael Noble cc'd these lists but since he's probably not on them, I'll forward his message:

Niels,

On Wed, Apr 28, 2010 at 1:26 AM, Niels Mayer <nielsmayer@gmail.com> wrote:
>
> On Mon, Apr 26, 2010 at 5:57 PM, michael noble <looplog@gmail.com> wrote:
>>
>> If you search Packman the 1.4 rpms are there. Or just use this link:
>> http://packman.links2linux.de/search?scope=name&q=clam
>
> Thanks for making these available. Any chance x86_64 RPMs can be built?

These are not my handiwork, and I wouldn't want to steal credit for them!

Toni Graffy is the packager, as stated at Packman. He is subscribed to clam-devel, not sure if he is on the users list.

As to x86_64, I believe that problem came up before and there was some show-stopper that made packaging everything impossible, so Toni chose to drop 64 bit. You'd have to take it up with him, though.

Regarding the rest, I'm afraid I can't offer much help...

-m