Xapian-bindings Installation
============================

Known Issues
============

   * The bindings fail to link on Mac OS X 10.1 and 10.2.  Unfortunately we
     don't know of a workaround other than to upgrade to Mac OS X 10.3 or
     higher.  If you know of a solution please let us know.

   * The bindings glue code generated by SWIG seems to require a lot of memory
     to compile and can take several minutes even on a fast machine (at least
     with most versions of g++).  Some systems (such as OpenBSD) may require
     you to increase the amount of memory a process can use (using ulimit is
     the simplest way).  Alternatively you can compile the bindings without
     optimisation using:

	 make CXXFLAGS=-g

     Xapian-bindings version 0.9.3 reduces the compile time by something like a
     factor of 3 and probably also reduces memory usage significantly, but you
     might still encounter this issue on slower machines with less memory.

Quick Installation Guide
========================

The simplest way to compile this package 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.

     You need to make sure that xapian-config from xapian-core is on your path,
     or else pass its full path to xapian-bindings's configure script:

       ./configure XAPIAN_CONFIG=/path/to/xapian-config

     By default, configure will enable building of bindings for all languages
     which it can find the required tools for.  Alternatively you can specify
     exactly which bindings you want to build by passing one or more of the
     following options to configure:

       --with-python	    enable Python bindings
       --with-php	    enable PHP bindings
       --with-ruby	    enable Ruby bindings
       --with-tcl	    enable Tcl bindings
       --with-java	    enable Java bindings
       --with-csharp	    enable CSharp bindings

     If you've requested particular bindings using these options, then
     configure will fail with an error if it is missing the prerequisite
     tools, libraries, header files, etc required to build bindings for
     any of the specified languages.

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

  2. Type `make' to compile the package (if you don't have root access
     and want to compile any of the bindings other than Java and C#,
     read the next section).

  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.

  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'.  There is
     also a `make maintainer-clean' target, but that is intended mainly
     for the package's developers.  If you use it, you may have to get
     all sorts of other programs in order to regenerate files that came
     with the distribution.

Installing without root access
==============================

     By default the bindings for all languages apart from Java and C# will
     automatically detect where the language interpreter expects extension
     modules to be installed and try to install there.  This is a problem
     if you want to install them and don't have root access.  In this case
     follow the instructions for the particular language below (note: you
     still build several at once - just pass the arguments listed below
     for each language to "./configure", to "make", and to "make install".)
     Note that you also need to pass a "--prefix" option to configure so that
     the documentation and examples can be installed.

  PHP:

     ./configure --with-php --prefix=$HOME/install PHP_EXTENSION_DIR=$HOME/my_php_extensions
     make
     make install

     And you'll need to load the Xapian module in your PHP code using something
     like:

     dl("../../../home/USERNAME/my_php_extensions/xapian.so");

     The number of ".."s you need depends on what extension_dir is set to
     in php.ini.

  Python:

     ./configure --with-python --prefix=$HOME/install PYTHON_LIB=$HOME/my_python_modules
     make
     make install

     And then you'll need to tell Python to look for modules in this directory.
     Here are two possible ways to do that.

     setenv PYTHONPATH=$HOME/my_python_modules python myscript.py

     Or you can add this to your Python script:

     import sys
     sys.path.insert(0, "/home/USERNAME/my_python_modules")
     import xapian

  Ruby:

     ./configure --with-ruby --prefix=$HOME/install RUBY_LIB=$HOME/my_ruby_modules RUBY_LIB_ARCH=$HOME/my_ruby_modules
     make
     make install

     And then you'll need to tell Ruby to look for modules in this directory:

     ruby -I$HOME/my_ruby_modules myscript.rb

  Tcl8:

     ./configure --with-tcl --prefix=$HOME/install TCL_LIB=$HOME/my_tcl_modules
     make
     make install

     And then add the following to the start of your script to load Xapian:

     load [file join "/home/USERNAME/my_tcl_modules" xapian.so]

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 LIBS=-lposix

   If your system requires special flags, do let us know.  Where possible
we'd prefer configure to determine such flags by itself, but if we can't
then at least we can document the special flags to help other users of
systems like yours.

Compiling For Multiple Architectures
====================================

   You can compile the package for more than one kind of computer at the
same time, by placing the object files for each architecture in their
own directory.  To do this, you must use a version of `make' that
supports the `VPATH' variable, such as GNU `make'.  `cd' to the
directory where you want the object files and executables to go and run
the `configure' script.  `configure' automatically checks for the
source code in the directory that `configure' is in and in `..'.

   If you have to use a `make' that does not support the `VPATH'
variable, you have to compile the package for one architecture at a
time in the source code directory.  After you have installed the
package for one architecture, use `make distclean' before reconfiguring
for another architecture.

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

   By default, `make install' will install the package's files in
`/usr/local/bin', `/usr/local/man', etc.  You can specify an
installation prefix other than `/usr/local' by giving `configure' the
option `--prefix=PATH'.

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

   In addition, if you use an unusual directory layout you can give
options like `--bindir=PATH' 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.

Specifying the System Type
==========================

   There may be some features `configure' cannot figure out
automatically, but needs to determine by the type of machine the package
will run on.  Usually, assuming the package is built to be run on the
_same_ architectures, `configure' can figure that out, but if it prints
a message saying it cannot guess the machine type, give it the
`--build=TYPE' option.  TYPE can either be a short name for the system
type, such as `sun4', or a canonical name which has the form:

     CPU-COMPANY-SYSTEM

where SYSTEM can have one of these forms:

     OS KERNEL-OS

   See the file `config.sub' for the possible values of each field.  If
`config.sub' isn't included in this package, then this package doesn't
need to know the machine type.

   If you want to _use_ a cross compiler, that generates code for a
platform different from the build platform, you should specify the
"host" platform (i.e., that on which the generated programs will
eventually be run) with `--host=TYPE'.

Sharing Defaults
================

   If you want to set default values for `configure' scripts to share,
you can create a site shell script called `config.site' that gives
default values for variables like `CXX', `cache_file', and `prefix'.
`configure' looks for `PREFIX/share/config.site' if it exists, then
`PREFIX/etc/config.site' if it exists.  Or, you can set the
`CONFIG_SITE' environment variable to the location of the site script.
A warning: not all `configure' scripts look for a site script.

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 CXX=/usr/local2/bin/g++

will cause the specified g++ to be used as the C++ compiler (unless it is
overridden in the site shell script).

`configure' Invocation
======================

   As well as the options documented in the "Quick Installation Guide",
`configure' recognizes the following standard 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.
