[gentoo-dev] experimental portage patch

[Ned Ludd]

This patch updates the copyright, adds support for LDFLAGS,ASFLAGS and
two new FEATURES.

1) antivirus
 * this feature adds hooks to do virus scanning 
  ** before unpacking
  ** after compiling
- To take advantage of this feature you need to set 3 things in your
make.conf

FEATURES="${FEATURES} antivirus"

# only really tested with f-prot 
AVS_SCANNER=/opt/f-prot/f-prot
AVS_OPTS="-archive -dumb -ai -old"

# little to no testing done with clam
#AVS_SCANNER=/usr/bin/clamscan
#AVS_OPTS="--stdout --tgz=/bin/tar --tar=/bin/tar --unzip=/usr/bin/unzip
--disable-summary"

2) hardened
 * this feature removes group and other readable bits when installing
setuid files
 * this feature removes other readable bits when installing setgid files
 * this feature could do alot more depending on the type of feedback I
get.

- To take advantage of this feature you need to set 1 thing in your
make.conf

FEATURES="${FEATURES} hardened"

-- 
Ned Ludd <solar@g.o>
Gentoo Linux Developer (Hardened)