All software packages can be installed via distribution package.

swig-1.3
    http://swig.org/
    http://sourceforge.net/projects/swig/files/swig/swig-1.3.40/

Perl modules (via CPAN or distribution package)
    IO::Socket::SSL
    HTTP::Daemon::SSL
    RPC::XML

Python modules 
    m2crypto


BUILDING ON UBUNTU

The following is a complete list of packages required in order to build from
git on Ubuntu (tested on version 10.04,11.04,12.04):

autoconf-archive
automake
g++
git-core
libio-socket-ssl-perl
libhttp-daemon-ssl-perl
librpc-xml-perl
libtool
python-dev
swig
libxmlsec1-dev

BUILDING ON FREEBSD

The following is a list of ports necessary to build from git on FreeBSD
(tested on version 8.2, and 9.1):

pkg-config
xmlsec1
openjdk6
perl
automake (might require newer perl/autoconf/etc)
apache-ant
swig

BUILDING ON OS X (10.7)

The xmlsec package can be obtained using MacPorts, and if installing 
into non-standard location(/usr/local, /usr), please configure with 
--with-xmlsec1=newlocation

Similary, if prefer to install libabac's python code to a none default
python location(for example, unpriviledge path), please configure or 
install with --pythondir='newlocation' 


BUILDING ON CENTO OS5 (i386)

The following is a list of yummables necessary to build on Cento OS5

java-1.6.0-openjdk
xmlsec1-devel
xmlsec1-openssl-devel


BUILDING ON CENTO OS6 (x86_64)

The following is a list of yummables necessary to build on Cento OS6

java-1.6.0-openjdk
libtool-ltdl
libxslt
libtool-ltdl-devel
libxml2-devel
libxslt-devel
pkgconfig
python-devel
perl-devel
perl-ExtUtils-Embed
ant

xmlsec1
xmlsec1-devel
xmlsec1-openssl
xmlsec1-openssl-devel

If xmlsec1 related rpms are used from EPEL, please beware that there is a
bug in bundled xmlsec1-config that is used to bring in required cflags for
including the xmlsec1 libraries. This problem is side-stepped if libabac rpm 
is used.  Otherwise, if building ABAC by source is desired, either xmlsec1 
(1.2.16) needs to be build from source or an compiler flag needs to be set
via environment CFLAGS.

A perl install path should also be specified on Cento OS6 to hold the libabac's 
perl modules.  A complete configure command would be like this,

env CFLAGS="-DXMLSEC_NO_SIZE_T" ./configure --with-site-perl=/usr/lib64/perl5/site_perl