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+<!--
+Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 The SCons Foundation
+
+This file is processed by the bin/SConsDoc.py module.
+See its __doc__ string for a discussion of the format.
+-->
+<tool name="swig">
+<summary>
+Sets construction variables for the SWIG interface generator.
+</summary>
+<sets>
+SWIG
+SWIGFLAGS
+SWIGDIRECTORSUFFIX
+SWIGCFILESUFFIX
+SWIGCXXFILESUFFIX
+_SWIGINCFLAGS
+SWIGINCPREFIX
+SWIGINCSUFFIX
+SWIGCOM
+SWIGPATH
+SWIGVERSION
+</sets>
+<uses>
+SWIGCOMSTR
+</uses>
+</tool>
+
+<cvar name="SWIG">
+<summary>
+The scripting language wrapper and interface generator.
+</summary>
+</cvar>
+
+<cvar name="SWIGCFILESUFFIX">
+<summary>
+The suffix that will be used for intermediate C
+source files generated by
+the scripting language wrapper and interface generator.
+The default value is
+<filename>_wrap</filename>&cv-link-CFILESUFFIX;.
+By default, this value is used whenever the
+<option>-c++</option>
+option is
+<emphasis>not</emphasis>
+specified as part of the
+&cv-link-SWIGFLAGS;
+construction variable.
+</summary>
+</cvar>
+
+<cvar name="SWIGDIRECTORSUFFIX">
+<summary>
+The suffix that will be used for intermediate C++ header
+files generated by the scripting language wrapper and interface generator.
+These are only generated for C++ code when the SWIG 'directors' feature is
+turned on.
+The default value is
+<filename>_wrap.h</filename>.
+</summary>
+</cvar>
+
+<cvar name="SWIGCOM">
+<summary>
+The command line used to call
+the scripting language wrapper and interface generator.
+</summary>
+</cvar>
+
+<cvar name="SWIGCOMSTR">
+<summary>
+The string displayed when calling
+the scripting language wrapper and interface generator.
+If this is not set, then &cv-link-SWIGCOM; (the command line) is displayed.
+</summary>
+</cvar>
+
+<cvar name="SWIGCXXFILESUFFIX">
+<summary>
+The suffix that will be used for intermediate C++
+source files generated by
+the scripting language wrapper and interface generator.
+The default value is
+<filename>_wrap</filename>&cv-link-CFILESUFFIX;.
+By default, this value is used whenever the
+<filename>-c++</filename>
+option is specified as part of the
+&cv-link-SWIGFLAGS;
+construction variable.
+</summary>
+</cvar>
+
+<cvar name="SWIGFLAGS">
+<summary>
+General options passed to
+the scripting language wrapper and interface generator.
+This is where you should set
+<option>-python</option>,
+<option>-perl5</option>,
+<option>-tcl</option>,
+or whatever other options you want to specify to SWIG.
+If you set the
+<option>-c++</option>
+option in this variable,
+&scons;
+will, by default,
+generate a C++ intermediate source file
+with the extension that is specified as the
+&cv-link-CXXFILESUFFIX;
+variable.
+</summary>
+</cvar>
+
+<cvar name="_SWIGINCFLAGS">
+<summary>
+An automatically-generated construction variable
+containing the SWIG command-line options
+for specifying directories to be searched for included files.
+The value of &cv-_SWIGINCFLAGS; is created
+by appending &cv-SWIGINCPREFIX; and &cv-SWIGINCSUFFIX;
+to the beginning and end
+of each directory in &cv-SWIGPATH;.
+</summary>
+</cvar>
+
+<cvar name="SWIGINCPREFIX">
+<summary>
+The prefix used to specify an include directory on the SWIG command line.
+This will be appended to the beginning of each directory
+in the &cv-SWIGPATH; construction variable
+when the &cv-_SWIGINCFLAGS; variable is automatically generated.
+</summary>
+</cvar>
+
+<cvar name="SWIGINCSUFFIX">
+<summary>
+The suffix used to specify an include directory on the SWIG command line.
+This will be appended to the end of each directory
+in the &cv-SWIGPATH; construction variable
+when the &cv-_SWIGINCFLAGS; variable is automatically generated.
+</summary>
+</cvar>
+
+<cvar name="SWIGOUTDIR">
+<summary>
+Specifies the output directory in which
+the scripting language wrapper and interface generator
+should place generated language-specific files.
+This will be used by SCons to identify
+the files that will be generated by the &swig; call,
+and translated into the
+<literal>swig -outdir</literal> option on the command line.
+</summary>
+</cvar>
+
+<cvar name="SWIGPATH">
+<summary>
+The list of directories that the scripting language wrapper
+and interface generate will search for included files.
+The SWIG implicit dependency scanner will search these
+directories for include files.
+The default is to use the same path
+specified as &cv-CPPPATH;.
+
+Don't explicitly put include directory
+arguments in SWIGFLAGS;
+the result will be non-portable
+and the directories will not be searched by the dependency scanner.
+Note: directory names in SWIGPATH will be looked-up relative to the SConscript
+directory when they are used in a command.
+To force
+&scons;
+to look-up a directory relative to the root of the source tree use #:
+
+<example>
+env = Environment(SWIGPATH='#/include')
+</example>
+
+The directory look-up can also be forced using the
+&Dir;()
+function:
+
+<example>
+include = Dir('include')
+env = Environment(SWIGPATH=include)
+</example>
+
+The directory list will be added to command lines
+through the automatically-generated
+&cv-_SWIGINCFLAGS;
+construction variable,
+which is constructed by
+appending the values of the
+&cv-SWIGINCPREFIX; and &cv-SWIGINCSUFFIX;
+construction variables
+to the beginning and end
+of each directory in &cv-SWIGPATH;.
+Any command lines you define that need
+the SWIGPATH directory list should
+include &cv-_SWIGINCFLAGS;:
+
+<example>
+env = Environment(SWIGCOM="my_swig -o $TARGET $_SWIGINCFLAGS $SORUCES")
+</example>
+</summary>
+</cvar>
+
+<cvar name="SWIGVERSION">
+<summary>
+The version number of the SWIG tool.
+</summary>
+</cvar>