Installation Instructions
*************************

Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005, 2007 Free
Software Foundation, Inc.

This file is free documentation; the Free Software Foundation gives
unlimited permission to copy, distribute and modify it.

Basic Installation
==================

These are installation instructions specific to PSPP (including PSPPIRE, 
the graphic user interface).  These instructions contain the
information most commonly needed by people wishing to build the
program from source.  More detailed information can be found in the
generic autoconf manual which is available at
http://www.gnu.org/software/autoconf/manual/html_node/Running-configure-Scripts.html

   The `configure' shell script attempts to guess correct values for
various system-dependent variables used during compilation.


   If you need to do unusual things to compile the package, please try
to figure out how `configure' could check whether to do them, and mail
diffs or instructions to pspp-dev@gnu.org so they can
be considered for the next release. 


The simplest way to compile PSPP is:

  1. `cd' to the directory containing the package's source code and type
     `./configure' to configure the package for your system.  If you're
     using `csh' on an old version of System V, you might need to type
     `sh ./configure' instead to prevent `csh' from trying to execute
     `configure' itself.

     Running `configure' takes awhile.  While running, it prints some
     messages telling which features it is checking for.

  2. Type `make' to compile the package.

  3. Optionally, type `make check' to run the self-tests that come with
     the package.

  4. Type `make install' to install the programs and any data files and
     documentation.  You will need root permissions to do this.

  5. You can remove the program binaries and object files from the
     source code directory by typing `make clean'.  To also remove the
     files that `configure' created (so you can compile the package for
     a different kind of computer), type `make distclean'.

Compilers and Options
=====================

Some systems may require unusual options for compilation or linking that the
`configure' script does not know about.  Run `./configure --help' for
details on some of the pertinent environment variables.

   You can give `configure' initial values for configuration parameters
by setting variables in the command line or in the environment.  Here
is an example:

     ./configure CC=c89 CFLAGS=-O2 LIBS=-lposix

   *Note Defining Variables::, for more details.


Installation Names
==================

By default, `make install' installs PSPP's commands under
`/usr/local/bin', data files under `/usr/local/share', etc.  You
can specify an installation prefix other than `/usr/local' by giving
`configure' the option `--prefix=PREFIX'.

   You can specify separate installation prefixes for
architecture-specific files and architecture-independent files.  If you
pass the option `--exec-prefix=PREFIX' to `configure', the package uses
PREFIX as the prefix for installing programs and libraries.
Documentation and other data files still use the regular prefix.

   In addition, if you use an unusual directory layout you can give
options like `--bindir=DIR' to specify different values for particular
kinds of files.  Run `configure --help' for a list of the directories
you can set and what kinds of files go in them.

   You can cause programs to be installed with an extra prefix or
suffix on their names by giving `configure' the  option
`--program-prefix=PREFIX' or `--program-suffix=SUFFIX'. 

Optional Features
=================

`--without-libplot'
    Don't compile in support for charts (using libplot).  This is
    useful if your system doesn't have the libplot library.

`--without-gui'
    Don't build the PSPPIRE gui.  Use this option if you only want to
    build the command line version of PSPP.

`--with-gui-tools'
    Build the gui developer tools.  There is no reason to use this
    option unless you're involved with the development of PSPP


Defining Variables
==================

Variables not defined in a site shell script can be set in the
environment passed to `configure'.  However, some packages may run
configure again during the build, and the customized values of these
variables may be lost.  In order to avoid this problem, you should set
them in the `configure' command line, using `VAR=value'.  For example:

     ./configure CC=/usr/local2/bin/gcc

causes the specified `gcc' to be used as the C compiler (unless it is
overridden in the site shell script).  Here is a another example:

     /bin/bash ./configure CONFIG_SHELL=/bin/bash

Here the `CONFIG_SHELL=/bin/bash' operand causes subsequent
configuration-related scripts to be executed by `/bin/bash'.

Generic `configure' Options
===========================

`configure' also recognizes the following options to control how it operates.

`--help'
`-h'
     Print a summary of the options to `configure', and exit.

`--version'
`-V'
     Print the version of Autoconf used to generate the `configure'
     script, and exit.

`--cache-file=FILE'
     Enable the cache: use and save the results of the tests in FILE,
     traditionally `config.cache'.  FILE defaults to `/dev/null' to
     disable caching.

`--config-cache'
`-C'
     Alias for `--cache-file=config.cache'.

`--quiet'
`--silent'
`-q'
     Do not print messages saying which checks are being made.  To
     suppress all normal output, redirect it to `/dev/null' (any error
     messages will still be shown).

`--srcdir=DIR'
     Look for the package's source code in directory DIR.  Usually
     `configure' can determine that directory automatically.

`configure' also accepts some other, not widely useful, options.  Run
`configure --help' for more details.