I'm posting here some findings when i install Amavis mail virus scaner on my sistem.
AmavisD for slackware 8.0:

First you need to install latest perl and this modules:
in this order:

Archive-Tar-0.22.tar.gz
Archive-Zip-1.01.tar.gz
IO-stringy-2.108.tar.gz
Compress-Zlib-1.16.tar.gz
MIME-Base64-2.11.tar.gz
MIME-tools-5.411a.tar.gz
Convert-TNEF-0.17.tar.gz
MailTools-1.47.tar.gz
Convert-UUlib-0.212.tar.gz
Unix-Syslog-0.98.tar.gz


This commpres tools:
unrar-2.71.tar.gz
lha-114i.tar.gz

Next you need remove arc section from your Configure file
(becouse i didn't manage do install it and quit after trying
for 3 hours)

ok that should be it for configure, so next you just type
make, make install

OK then next thing if you use procmail for local delivery
you will have problems with delivey so you need to change
Mlocal setting (in sendmail.cf)from this:

Mlocal, P=/usr/sbin/amavis, F=lsDFMAw5:/|@qSPfhn9, S=EnvFromL/HdrFromL, R=EnvToL/HdrToL,
T=DNS/RFC822/X-Unix,
A=amavis $f $u -- /usr/bin/procmail -Y -a $h -d $u


to this:

Mlocal, P=/usr/sbin/amavis, F=lsDFMAw5:/|@qSPhn9, S=EnvFromL/HdrFromL, R=EnvToL/HdrToL,
T=DNS/RFC822/X-Unix,
A=amavis $f $u -- /usr/bin/procmail -Y -d $u

ok and that's it

good luck with it.

PcHammer