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Requirements
============

OpenAxiom currenly requires a Lisp system for its runtime support.
OpenAxiom is known to build with the GNU Common Lisp (GCL versions 2.6.7
or 2.6.8), Steel Bank Common Lisp (SBCL version 1.0.x or higher), and
CLisp (version 2.44.x or higher).  So, if you already have any of the
above mentioned Lisp system, your are good to go.  Otherwise, you
would need to download a dependency tarball from OpenAxiom's download
web site.  See instructions below. 

OpenAxiom needs `noweb' for extracting its source codes.  If you don't
have running `noweb' utilities, you would need to either download the
dependency tarball from OpenAxiom's download web site, or separately
install them, and then proceed with configuration as detailed below.

Note that GCL or SBCL or CLisp, and `noweb' are needed only to build
OpenAxiom.  They are not needed once the system is installed.

Finally, you would need a working GNU C compiler.  It is also recommended
that you install X11 development headers and libraries, especially
Xpm.  Windows (MingW/MSYS) users do not need X11 components.  They
still need a working GNU C compiler though.

Ah, one more note:  OpenAxiom requires GNU Make.

1. Lisp and noweb prerequisites
   ----------------------------

If any of GCL or noweb is missing from the environment environment
where you're building, then you need to either separately install
them, or download the dependency tarball

    open-axiom-1.1.x-dep.tar.bz2

Please, notice that GCL and noweb are needed only to *build*
OpenAxiom.  If you plan to build OpenAxiom often, then it probably is
a good idea to separately build and install those tools once for all.


If you already have GCL and noweb installed, please go to step 2.
Note however that if you want to build OpenAxiom with the GCL from
the dependency tarball (assuming you have unpacked it as explained
in step 1.b.), and you have other Lisp systems available in the build 
environment, then you should add the option --enable-gcl to the 
configure command line.  In short, add --enable-gcl if you
specifically insist on GCL as the base Lisp runtime system.

1.a. Download the dependency tarball open-axiom-1.1.x-dep.tar.bz2

1.b. Decompress the dependency tarball

      tar jxfv open-axiom-1.1.x-dep.tar.bz2


    That should decompress the dependency tarball in a directory
named open-axiom-1.1.x.  Rename it to open-axiom-1.2.0, e.g.:

       mv open-axiom-1.1.x open-axiom-1.2.0

2. Building OpenAxiom
   ------------------

It is assumed you have already downloaded open-axiom source tarball,
e.g. open-axiom-1.2.0.tar.bz2.  

Note: If you don't have GCL or noweb in the build environment, please
make sure that you have either followed the instructions in step 1.,
or have separately installed them before proceeding.

2.a. Decompress the OpenAxiom source tarball

      tar jfxv open-axiom-1.2.0.tar.bz2

2.b. Configure OpenAxiom

It is highly recommended that you build OpenAxiom in a directory
different from the one that contains the sources.  For example, you
may create a directory sibling to open-axiom-1.2.0 and build the
system from there:

      mkdir build-oa
      cd build-oa
      ../open-axiom-1.2.0/configure

It is possible to tell configure where to put the final OpenAxiom
executables.  By default, when you just type in configure like above,
it will configure the system with prefix /usr/local.  You can instead
say where you want it to be installed, let's say /banana/space.  You
would then have typed

     ../open-axiom-1.2.0/configure --prefix=/banana/space

This is recommended, especially if you already have a different software, 
not OpenAxiom, the executable filename of which is also called `axiom'.
That way, you don't confuse OpenAxiom's command `axiom', with any other
program that you may have on your system.  Most users usually have only
one software with a given name on their machines.  If you plan to 
have many software sharing the same executable name, please make sure
that you install them in distinct directories so that they don't conflict.

2.c. Make the system

Just type

       make

or

       make 2>&1 | tee build.log

if you would like to inspect the build messages later on -- but most
users probably don't.

2.d.  Have some coffee

2.e.  Have more coffee

It can take from 30min to 2 hours to build, depending on the
compute power of the build machine.

3. Installing OpenAxiom   
   --------------------

Once the build (step 2.) has gone successfully, you may optionally try
to regress-test the system -- it can take hours.

3.a. [optional]

       make check 2>&1 | tee tests.log

3.b. The system is ready to install

If you configured the system to install in a place that needs special
privilege, e.g. /usr/local that requires administrator write, please
make sure that you've gained the adequate privileges.  Then, type:

      make install

3.c. The system is ready for use

After step 3.b., your should have a script called `open-axiom', in
/usr/local/bin or /banana/space/bin or /whichever/prefix/you/used/bin,
ready for use.  

4.  Enjoy
    -----

About Make
==========

OpenAxiom build system requires GNU Make.  It might theoretically be
possible to cram the Makefiles so that they can work with a large set 
of Make programs.  However, doing so will not be cost effective.  GNU 
Make has been ported to virtually any system current OpenAxiom can build
one.  In particular, OpenAxiom uses GCL, which in turns requires GCC.
GCC requires GNU Make.  GCL too requires GNU Make.  Consequently,
the GNU Make requirement is not a stringent requirement.  It just
reflects reality.

So, if you're using a system where "make" is not GNU Make, then try
"gmake" instead. 

Send comments and suggestions to open-axiom-devel@lists.sf.net

Gabriel Dos Reis