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| <div class="document" id="logo-getting-started-on-unix-variants"> |
| <h1 class="title"><a class="reference external" href="../../index.htm"><img alt="Boost" class="boost-logo" src="../../boost.png" /></a> Getting Started on Unix Variants</h1> |
| |
| <!-- Copyright David Abrahams 2006. Distributed under the Boost --> |
| <!-- Software License, Version 1.0. (See accompanying --> |
| <!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) --> |
| <!-- maybe we don't need this |
| .. Admonition:: A note to Cygwin_ and MinGW_ users |
| |
| If you plan to build from the Cygwin_ bash shell, you're in the |
| right place. If you plan to use your tools from the Windows |
| command prompt, you should follow the instructions for `getting |
| started on Windows`_. Other command shells, such as MinGW_\ 's |
| MSYS, are not supported—they may or may not work. |
| |
| .. _`Getting Started on Windows`: windows.html |
| .. _Cygwin: http://www.cygwin.com |
| .. _MinGW: http://mingw.org --> |
| <div class="contents topic" id="index"> |
| <p class="topic-title first">Index</p> |
| <ul class="auto-toc simple"> |
| <li><a class="reference internal" href="#get-boost" id="id20">1 Get Boost</a></li> |
| <li><a class="reference internal" href="#the-boost-distribution" id="id21">2 The Boost Distribution</a></li> |
| <li><a class="reference internal" href="#header-only-libraries" id="id22">3 Header-Only Libraries</a></li> |
| <li><a class="reference internal" href="#build-a-simple-program-using-boost" id="id23">4 Build a Simple Program Using Boost</a><ul class="auto-toc"> |
| <li><a class="reference internal" href="#errors-and-warnings" id="id24">4.1 Errors and Warnings</a></li> |
| </ul> |
| </li> |
| <li><a class="reference internal" href="#prepare-to-use-a-boost-library-binary" id="id25">5 Prepare to Use a Boost Library Binary</a><ul class="auto-toc"> |
| <li><a class="reference internal" href="#easy-build-and-install" id="id26">5.1 Easy Build and Install</a></li> |
| <li><a class="reference internal" href="#or-build-custom-binaries" id="id27">5.2 Or, Build Custom Binaries</a><ul class="auto-toc"> |
| <li><a class="reference internal" href="#get-bjam" id="id28">5.2.1 Get <tt class="docutils literal">bjam</tt></a></li> |
| <li><a class="reference internal" href="#identify-your-toolset" id="id29">5.2.2 Identify Your Toolset</a></li> |
| <li><a class="reference internal" href="#select-a-build-directory" id="id30">5.2.3 Select a Build Directory</a></li> |
| <li><a class="reference internal" href="#invoke-bjam" id="id31">5.2.4 Invoke <tt class="docutils literal">bjam</tt></a></li> |
| </ul> |
| </li> |
| <li><a class="reference internal" href="#expected-build-output" id="id32">5.3 Expected Build Output</a></li> |
| <li><a class="reference internal" href="#in-case-of-build-errors" id="id33">5.4 In Case of Build Errors</a></li> |
| </ul> |
| </li> |
| <li><a class="reference internal" href="#link-your-program-to-a-boost-library" id="id34">6 Link Your Program to a Boost Library</a><ul class="auto-toc"> |
| <li><a class="reference internal" href="#library-naming" id="id35">6.1 Library Naming</a></li> |
| <li><a class="reference internal" href="#test-your-program" id="id36">6.2 Test Your Program</a></li> |
| </ul> |
| </li> |
| <li><a class="reference internal" href="#conclusion-and-further-resources" id="id37">7 Conclusion and Further Resources</a></li> |
| </ul> |
| </div> |
| <div class="section" id="get-boost"> |
| <h1><a class="toc-backref" href="#id20">1 Get Boost</a></h1> |
| <p>The most reliable way to get a copy of Boost is to download a |
| distribution from <a class="reference external" href="http://sourceforge.net/project/showfiles.php?group_id=7586&package_id=8041">SourceForge</a>:</p> |
| <ol class="arabic"> |
| <li><p class="first">Download <a class="reference external" href="http://sourceforge.net/project/showfiles.php?group_id=7586&package_id=8041"><tt class="docutils literal">boost_1_45_0</tt><tt class="docutils literal">.tar.bz2</tt></a>.</p> |
| </li> |
| <li><p class="first">In the directory where you want to put the Boost installation, |
| execute</p> |
| <pre class="literal-block"> |
| tar --bzip2 -xf <em>/path/to/</em><tt class="docutils literal">boost_1_45_0</tt>.tar.bz2 |
| </pre> |
| </li> |
| </ol> |
| <div class="admonition-other-packages admonition"> |
| <p class="first admonition-title">Other Packages</p> |
| <p class="last">RedHat, Debian, and other distribution packagers supply Boost |
| library packages, however you may need to adapt these |
| instructions if you use third-party packages, because their |
| creators usually choose to break Boost up into several packages, |
| reorganize the directory structure of the Boost distribution, |
| and/or rename the library binaries.<a class="footnote-reference" href="#packagers" id="id2"><sup>1</sup></a> If you have |
| any trouble, we suggest using an official Boost distribution |
| from <a class="reference external" href="http://sourceforge.net/project/showfiles.php?group_id=7586&package_id=8041">SourceForge</a>.</p> |
| </div> |
| <!-- Copyright David Abrahams 2006. Distributed under the Boost --> |
| <!-- Software License, Version 1.0. (See accompanying --> |
| <!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) --> |
| </div> |
| <div class="section" id="the-boost-distribution"> |
| <h1><a class="toc-backref" href="#id21">2 The Boost Distribution</a></h1> |
| <p>This is a sketch of the resulting directory structure:</p> |
| <pre class="literal-block"> |
| <strong>boost_1_45_0</strong><strong>/</strong> .................<em>The “boost root directory”</em> |
| <strong>index.htm</strong> .........<em>A copy of www.boost.org starts here</em> |
| <strong>boost</strong><strong>/</strong> .........................<em>All Boost Header files</em> |
| <tt class="docutils literal"> </tt> |
| <strong>libs</strong><strong>/</strong> ............<em>Tests, .cpp</em>s<em>, docs, etc., by library</em> |
| <strong>index.html</strong> ........<em>Library documentation starts here</em> |
| <strong>algorithm</strong><strong>/</strong> |
| <strong>any</strong><strong>/</strong> |
| <strong>array</strong><strong>/</strong> |
| <em>…more libraries…</em> |
| <strong>status</strong><strong>/</strong> .........................<em>Boost-wide test suite</em> |
| <strong>tools</strong><strong>/</strong> ...........<em>Utilities, e.g. bjam, quickbook, bcp</em> |
| <strong>more</strong><strong>/</strong> ..........................<em>Policy documents, etc.</em> |
| <strong>doc</strong><strong>/</strong> ...............<em>A subset of all Boost library docs</em> |
| </pre> |
| <div class="sidebar"> |
| <p class="first sidebar-title">Header Organization</p> |
| <p class="pre-wrap">The organization of Boost library headers isn't entirely uniform, |
| but most libraries follow a few patterns:</p> |
| <ul class="pre-wrap last"> |
| <li><p class="first">Some older libraries and most very small libraries place all |
| public headers directly into <tt class="docutils literal">boost</tt><tt class="docutils literal">/</tt>.</p> |
| </li> |
| <li><p class="first">Most libraries' public headers live in a subdirectory of |
| <tt class="docutils literal">boost</tt><tt class="docutils literal">/</tt>, named after the library. For example, you'll find |
| the Python library's <tt class="docutils literal">def.hpp</tt> header in</p> |
| <pre class="literal-block"> |
| <tt class="docutils literal">boost</tt><tt class="docutils literal">/</tt><tt class="docutils literal">python</tt><tt class="docutils literal">/</tt><tt class="docutils literal">def.hpp</tt>. |
| </pre> |
| </li> |
| <li><p class="first">Some libraries have an “aggregate header” in <tt class="docutils literal">boost</tt><tt class="docutils literal">/</tt> that |
| <tt class="docutils literal">#include</tt>s all of the library's other headers. For |
| example, <a class="reference external" href="../../libs/python/doc/building.html">Boost.Python</a>'s aggregate header is</p> |
| <pre class="literal-block"> |
| <tt class="docutils literal">boost</tt><tt class="docutils literal">/</tt><tt class="docutils literal">python.hpp</tt>. |
| </pre> |
| </li> |
| <li><p class="first">Most libraries place private headers in a subdirectory called |
| <tt class="docutils literal">detail</tt><tt class="docutils literal">/</tt>, or <tt class="docutils literal">aux_</tt><tt class="docutils literal">/</tt>. Don't expect to find |
| anything you can use in these directories.</p> |
| </li> |
| </ul> |
| </div> |
| <p>It's important to note the following:</p> |
| <ol class="arabic" id="boost-root-directory"> |
| <li><p class="first">The path to the <strong>boost root directory</strong> (often <tt class="docutils literal">/usr/local/</tt><tt class="docutils literal">boost_1_45_0</tt>) is |
| sometimes referred to as <tt class="docutils literal">$BOOST_ROOT</tt> in documentation and |
| mailing lists .</p> |
| </li> |
| <li><p class="first">To compile anything in Boost, you need a directory containing |
| the <tt class="docutils literal">boost</tt><tt class="docutils literal">/</tt> subdirectory in your <tt class="docutils literal">#include</tt> path. <tt class="docutils literal"> </tt></p> |
| </li> |
| <li><p class="first">Since all of Boost's header files have the <tt class="docutils literal">.hpp</tt> extension, |
| and live in the <tt class="docutils literal">boost</tt><tt class="docutils literal">/</tt> subdirectory of the boost root, your |
| Boost <tt class="docutils literal">#include</tt> directives will look like:</p> |
| <pre class="literal-block"> |
| #include <boost/<em>whatever</em>.hpp> |
| </pre> |
| <p>or</p> |
| <pre class="literal-block"> |
| #include "boost/<em>whatever</em>.hpp" |
| </pre> |
| <p>depending on your preference regarding the use of angle bracket |
| includes. <tt class="docutils literal"> </tt></p> |
| </li> |
| <li><p class="first">Don't be distracted by the <tt class="docutils literal">doc</tt><tt class="docutils literal">/</tt> subdirectory; it only |
| contains a subset of the Boost documentation. Start with |
| <tt class="docutils literal">libs</tt><tt class="docutils literal">/</tt><tt class="docutils literal">index.html</tt> if you're looking for the whole enchilada.</p> |
| </li> |
| </ol> |
| <!-- Copyright David Abrahams 2006. Distributed under the Boost --> |
| <!-- Software License, Version 1.0. (See accompanying --> |
| <!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) --> |
| </div> |
| <div class="section" id="header-only-libraries"> |
| <h1><a class="toc-backref" href="#id22">3 Header-Only Libraries</a></h1> |
| <p>The first thing many people want to know is, “how do I build |
| Boost?” The good news is that often, there's nothing to build.</p> |
| <div class="admonition-nothing-to-build admonition"> |
| <p class="first admonition-title">Nothing to Build?</p> |
| <p class="last">Most Boost libraries are <strong>header-only</strong>: they consist <em>entirely |
| of header files</em> containing templates and inline functions, and |
| require no separately-compiled library binaries or special |
| treatment when linking.</p> |
| </div> |
| <!-- .. _separate: --> |
| <p>The only Boost libraries that <em>must</em> be built separately are:</p> |
| <ul class="simple"> |
| <li><a class="reference external" href="../../libs/filesystem/index.html">Boost.Filesystem</a></li> |
| <li><a class="reference external" href="../../libs/graph_parallel/index.html">Boost.GraphParallel</a></li> |
| <li><a class="reference external" href="../../libs/iostreams/index.html">Boost.IOStreams</a></li> |
| <li><a class="reference external" href="../../libs/mpi/index.html">Boost.MPI</a></li> |
| <li><a class="reference external" href="../../libs/program_options/index.html">Boost.ProgramOptions</a></li> |
| <li><a class="reference external" href="../../libs/python/doc/building.html">Boost.Python</a> (see the <a class="reference external" href="../../libs/python/doc/building.html">Boost.Python build documentation</a> |
| before building and installing it)</li> |
| <li><a class="reference external" href="../../libs/regex/index.html">Boost.Regex</a></li> |
| <li><a class="reference external" href="../../libs/serialization/index.html">Boost.Serialization</a></li> |
| <li><a class="reference external" href="../../libs/signals/index.html">Boost.Signals</a></li> |
| <li><a class="reference external" href="../../libs/system/index.html">Boost.System</a></li> |
| <li><a class="reference external" href="../../doc/html/thread.html">Boost.Thread</a></li> |
| <li><a class="reference external" href="../../libs/wave/index.html">Boost.Wave</a></li> |
| </ul> |
| <p>A few libraries have optional separately-compiled binaries:</p> |
| <ul class="simple"> |
| <li><a class="reference external" href="../../libs/date_time/index.html">Boost.DateTime</a> has a binary component that is only needed if |
| you're using its <tt class="docutils literal">to_string</tt>/<tt class="docutils literal">from_string</tt> or serialization |
| features, or if you're targeting Visual C++ 6.x or Borland.</li> |
| <li><a class="reference external" href="../../libs/graph/index.html">Boost.Graph</a> also has a binary component that is only needed if |
| you intend to <a class="reference external" href="../../libs/graph/doc/read_graphviz.html">parse GraphViz files</a>.</li> |
| <li><a class="reference external" href="../../libs/math/index.html">Boost.Math</a> has binary components for the TR1 and C99 |
| cmath functions.</li> |
| <li><a class="reference external" href="../../libs/random/index.html">Boost.Random</a> has a binary component which is only needed if |
| you're using <tt class="docutils literal">random_device</tt>.</li> |
| <li><a class="reference external" href="../../libs/test/index.html">Boost.Test</a> can be used in “header-only” or “separately compiled” |
| mode, although <strong>separate compilation is recommended for serious |
| use</strong>.</li> |
| </ul> |
| <!-- Copyright David Abrahams 2006. Distributed under the Boost --> |
| <!-- Software License, Version 1.0. (See accompanying --> |
| <!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) --> |
| </div> |
| <div class="section" id="build-a-simple-program-using-boost"> |
| <h1><a class="toc-backref" href="#id23">4 Build a Simple Program Using Boost</a></h1> |
| <p>To keep things simple, let's start by using a header-only library. |
| The following program reads a sequence of integers from standard |
| input, uses Boost.Lambda to multiply each number by three, and |
| writes them to standard output:</p> |
| <pre class="literal-block"> |
| #include <boost/lambda/lambda.hpp> |
| #include <iostream> |
| #include <iterator> |
| #include <algorithm> |
| |
| int main() |
| { |
| using namespace boost::lambda; |
| typedef std::istream_iterator<int> in; |
| |
| std::for_each( |
| in(std::cin), in(), std::cout << (_1 * 3) << " " ); |
| } |
| </pre> |
| <p>Copy the text of this program into a file called <tt class="docutils literal">example.cpp</tt>.</p> |
| <p>Now, in the directory where you saved <tt class="docutils literal">example.cpp</tt>, issue the |
| following command:</p> |
| <pre class="literal-block"> |
| c++ -I <em>path/to/</em><tt class="docutils literal">boost_1_45_0</tt> example.cpp -o example |
| </pre> |
| <p>To test the result, type:</p> |
| <pre class="literal-block"> |
| echo 1 2 3 | ./example |
| </pre> |
| <!-- Copyright David Abrahams 2006. Distributed under the Boost --> |
| <!-- Software License, Version 1.0. (See accompanying --> |
| <!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) --> |
| <div class="section" id="errors-and-warnings"> |
| <h2><a class="toc-backref" href="#id24">4.1 Errors and Warnings</a></h2> |
| <p>Don't be alarmed if you see compiler warnings originating in Boost |
| headers. We try to eliminate them, but doing so isn't always |
| practical.<a class="footnote-reference" href="#warnings" id="id5"><sup>3</sup></a> <strong>Errors are another matter</strong>. If you're |
| seeing compilation errors at this point in the tutorial, check to |
| be sure you've copied the <a class="reference internal" href="#build-a-simple-program-using-boost">example program</a> correctly and that you've |
| correctly identified the <a class="reference internal" href="#boost-root-directory">Boost root directory</a>.</p> |
| <!-- Copyright David Abrahams 2006. Distributed under the Boost --> |
| <!-- Software License, Version 1.0. (See accompanying --> |
| <!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) --> |
| </div> |
| </div> |
| <div class="section" id="prepare-to-use-a-boost-library-binary"> |
| <h1><a class="toc-backref" href="#id25">5 Prepare to Use a Boost Library Binary</a></h1> |
| <p>If you want to use any of the separately-compiled Boost libraries, |
| you'll need to acquire library binaries.</p> |
| <div class="section" id="easy-build-and-install"> |
| <h2><a class="toc-backref" href="#id26">5.1 Easy Build and Install</a></h2> |
| <p>Issue the following commands in the shell (don't type <tt class="docutils literal">$</tt>; that |
| represents the shell's prompt):</p> |
| <pre class="literal-block"> |
| <strong>$</strong> cd <em>path/to/</em><tt class="docutils literal">boost_1_45_0</tt> |
| <strong>$</strong> ./bootstrap.sh --help |
| </pre> |
| <p>Select your configuration options and invoke <tt class="docutils literal">./bootstrap.sh</tt> again |
| without the <tt class="docutils literal"><span class="pre">--help</span></tt> option. Unless you have write permission in |
| your system's <tt class="docutils literal">/usr/local/</tt> directory, you'll probably want to at |
| least use</p> |
| <pre class="literal-block"> |
| <strong>$</strong> ./bootstrap.sh <strong>--prefix=</strong><em>path</em>/<em>to</em>/<em>installation</em>/<em>prefix</em> |
| </pre> |
| <p>to install somewhere else. Also, consider using the |
| <tt class="docutils literal"><span class="pre">--show-libraries</span></tt> and <tt class="docutils literal"><span class="pre">--with-libraries=</span></tt><em>library-name-list</em> options to limit the |
| long wait you'll experience if you build everything. Finally,</p> |
| <pre class="literal-block"> |
| <strong>$</strong> ./bjam install |
| </pre> |
| <p>will leave Boost binaries in the <tt class="docutils literal">lib/</tt> subdirectory of your |
| installation prefix. You will also find a copy of the Boost |
| headers in the <tt class="docutils literal">include/</tt> subdirectory of the installation |
| prefix, so you can henceforth use that directory as an <tt class="docutils literal">#include</tt> |
| path in place of the Boost root directory.</p> |
| <p><a class="reference internal" href="#link-your-program-to-a-boost-library"><em>skip to the next step</em></a></p> |
| </div> |
| <div class="section" id="or-build-custom-binaries"> |
| <h2><a class="toc-backref" href="#id27">5.2 Or, Build Custom Binaries</a></h2> |
| <p>If you're using a compiler other than your system's default, you'll |
| need to use <a class="reference external" href="../../tools/build/index.html">Boost.Build</a> to create binaries.</p> |
| <p>You'll also |
| use this method if you need a nonstandard build variant (see the |
| <a class="reference external" href="../../tools/build/index.html">Boost.Build documentation</a> for more details).</p> |
| <div class="admonition-boost-cmake admonition"> |
| <p class="first admonition-title">Boost.CMake</p> |
| <p class="last">There is also an experimental CMake build for boost, supported and distributed |
| separately. See the <a class="reference external" href="https://svn.boost.org/trac/boost/wiki/CMake">Boost.CMake</a> wiki page for more information.</p> |
| </div> |
| <!-- Copyright David Abrahams 2006. Distributed under the Boost --> |
| <!-- Software License, Version 1.0. (See accompanying --> |
| <!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) --> |
| <p><a class="reference external" href="../../tools/build/index.html">Boost.Build</a> is a text-based system for developing, testing, and |
| installing software. To use it, you'll need an executable called |
| <tt class="docutils literal">bjam</tt>.</p> |
| <!-- .. _Boost.Jam documentation: Boost.Jam_ --> |
| <div class="section" id="get-bjam"> |
| <h3><a class="toc-backref" href="#id28">5.2.1 Get <tt class="docutils literal">bjam</tt></a></h3> |
| <p><tt class="docutils literal">bjam</tt> is the command-line tool that drives the Boost Build |
| system. To build Boost binaries, you'll invoke <tt class="docutils literal">bjam</tt> from the |
| Boost root.</p> |
| <p>We suggest you <a class="reference external" href="http://sourceforge.net/project/showfiles.php?group_id=7586&package_id=72941">download a pre-built <tt class="docutils literal">bjam</tt> executable</a> for your platform. |
| Alternatively, you can build <tt class="docutils literal">bjam</tt> yourself using <a class="reference external" href="../../doc/html/jam/building.html">these |
| instructions</a>.</p> |
| <p>Move the <tt class="docutils literal">bjam</tt> executable into a directory in your PATH. You can |
| see the list of directories in your PATH, separated by colons, |
| by typing “<tt class="docutils literal">echo $PATH</tt>” at the command prompt.</p> |
| </div> |
| <div class="section" id="identify-your-toolset"> |
| <span id="toolset-name"></span><span id="toolset"></span><h3><a class="toc-backref" href="#id29">5.2.2 Identify Your Toolset</a></h3> |
| <p>First, find the toolset corresponding to your compiler in the |
| following table (an up-to-date list is always available <a class="reference external" href="http://www.boost.org/boost-build2/doc/html/bbv2/reference/tools.html">in the |
| Boost.Build documentation</a>).</p> |
| <div class="note"> |
| <p class="first admonition-title">Note</p> |
| <p class="last">If you previously chose a toolset for the purposes of |
| <a class="reference external" href="../../doc/html/jam/building.html">building bjam</a>, you should assume it won't work and instead |
| choose newly from the table below.</p> |
| </div> |
| <table border="1" class="docutils"> |
| <colgroup> |
| <col width="18%" /> |
| <col width="33%" /> |
| <col width="48%" /> |
| </colgroup> |
| <thead valign="bottom"> |
| <tr><th class="head">Toolset |
| Name</th> |
| <th class="head">Vendor</th> |
| <th class="head">Notes</th> |
| </tr> |
| </thead> |
| <tbody valign="top"> |
| <tr><td><tt class="docutils literal">acc</tt></td> |
| <td>Hewlett Packard</td> |
| <td>Only very recent versions are |
| known to work well with Boost</td> |
| </tr> |
| <tr><td><tt class="docutils literal">borland</tt></td> |
| <td>Borland</td> |
| <td> </td> |
| </tr> |
| <tr><td><tt class="docutils literal">como</tt></td> |
| <td>Comeau Computing</td> |
| <td>Using this toolset may |
| require <a class="reference external" href="../../tools/build/index.html">configuring</a> another |
| toolset to act as its backend</td> |
| </tr> |
| <tr><td><tt class="docutils literal">cw</tt></td> |
| <td>Metrowerks/Freescale</td> |
| <td>The CodeWarrior compiler. We |
| have not tested versions of |
| this compiler produced since |
| it was sold to Freescale.</td> |
| </tr> |
| <tr><td><tt class="docutils literal">dmc</tt></td> |
| <td>Digital Mars</td> |
| <td>As of this Boost release, no |
| version of dmc is known to |
| handle Boost well.</td> |
| </tr> |
| <tr><td><tt class="docutils literal">darwin</tt></td> |
| <td>Apple Computer</td> |
| <td>Apple's version of the GCC |
| toolchain with support for |
| Darwin and MacOS X features |
| such as frameworks.</td> |
| </tr> |
| <tr><td><tt class="docutils literal">gcc</tt></td> |
| <td>The Gnu Project</td> |
| <td>Includes support for Cygwin |
| and MinGW compilers.</td> |
| </tr> |
| <tr><td><tt class="docutils literal">hp_cxx</tt></td> |
| <td>Hewlett Packard</td> |
| <td>Targeted at the Tru64 |
| operating system.</td> |
| </tr> |
| <tr><td><tt class="docutils literal">intel</tt></td> |
| <td>Intel</td> |
| <td> </td> |
| </tr> |
| <tr><td><tt class="docutils literal">msvc</tt></td> |
| <td>Microsoft</td> |
| <td> </td> |
| </tr> |
| <tr><td><tt class="docutils literal">qcc</tt></td> |
| <td>QNX Software Systems</td> |
| <td> </td> |
| </tr> |
| <tr><td><tt class="docutils literal">sun</tt></td> |
| <td>Sun</td> |
| <td>Only very recent versions are |
| known to work well with |
| Boost.</td> |
| </tr> |
| <tr><td><tt class="docutils literal">vacpp</tt></td> |
| <td>IBM</td> |
| <td>The VisualAge C++ compiler.</td> |
| </tr> |
| </tbody> |
| </table> |
| <p>If you have multiple versions of a particular compiler installed, |
| you can append the version number to the toolset name, preceded by |
| a hyphen, e.g. <tt class="docutils literal"><span class="pre">intel-9.0</span></tt> or |
| <tt class="docutils literal"><span class="pre">borland-5.4.3</span></tt>. <tt class="docutils literal"> </tt></p> |
| </div> |
| <div class="section" id="select-a-build-directory"> |
| <span id="id11"></span><span id="build-directory"></span><h3><a class="toc-backref" href="#id30">5.2.3 Select a Build Directory</a></h3> |
| <p><a class="reference external" href="../../tools/build/index.html">Boost.Build</a> will place all intermediate files it generates while |
| building into the <strong>build directory</strong>. If your Boost root |
| directory is writable, this step isn't strictly necessary: by |
| default Boost.Build will create a <tt class="docutils literal">bin.v2/</tt> subdirectory for that |
| purpose in your current working directory.</p> |
| </div> |
| <div class="section" id="invoke-bjam"> |
| <h3><a class="toc-backref" href="#id31">5.2.4 Invoke <tt class="docutils literal">bjam</tt></a></h3> |
| <p>Change your current directory to the Boost root directory and |
| invoke <tt class="docutils literal">bjam</tt> as follows:</p> |
| <pre class="literal-block"> |
| bjam <strong>--build-dir=</strong><a class="reference internal" href="#id11"><em>build-directory</em></a> <strong>toolset=</strong><a class="reference internal" href="#toolset-name"><em>toolset-name</em></a> <tt class="docutils literal"> </tt> stage |
| </pre> |
| <p>For a complete description of these and other invocation options, |
| please see the <a class="reference external" href="http://www.boost.org/boost-build2/doc/html/bbv2/advanced/invocation.html">Boost.Build documentation</a>.</p> |
| <p>For example, your session might look like this:</p> |
| <pre class="literal-block"> |
| $ cd ~/<tt class="docutils literal">boost_1_45_0</tt> |
| $ bjam <strong>--build-dir=</strong>/tmp/build-boost <strong>toolset=</strong>gcc stage |
| </pre> |
| <p>That will build static and shared non-debug multi-threaded variants of the libraries. To build all variants, pass the additional option, “<tt class="docutils literal"><span class="pre">--build-type=complete</span></tt>”.</p> |
| <!-- Copyright David Abrahams 2006. Distributed under the Boost --> |
| <!-- Software License, Version 1.0. (See accompanying --> |
| <!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) --> |
| <p>Building the special <tt class="docutils literal">stage</tt> target places Boost |
| library binaries in the <tt class="docutils literal">stage</tt><tt class="docutils literal">/</tt><tt class="docutils literal">lib</tt><tt class="docutils literal">/</tt> subdirectory of |
| the Boost tree. To use a different directory pass the |
| <tt class="docutils literal"><span class="pre">--stagedir=</span></tt><em>directory</em> option to <tt class="docutils literal">bjam</tt>.</p> |
| <div class="note"> |
| <p class="first admonition-title">Note</p> |
| <p class="last"><tt class="docutils literal">bjam</tt> is case-sensitive; it is important that all the |
| parts shown in <strong>bold</strong> type above be entirely lower-case.</p> |
| </div> |
| <p>For a description of other options you can pass when invoking |
| <tt class="docutils literal">bjam</tt>, type:</p> |
| <pre class="literal-block"> |
| bjam --help |
| </pre> |
| <p>In particular, to limit the amount of time spent building, you may |
| be interested in:</p> |
| <ul class="simple"> |
| <li>reviewing the list of library names with <tt class="docutils literal"><span class="pre">--show-libraries</span></tt></li> |
| <li>limiting which libraries get built with the <tt class="docutils literal"><span class="pre">--with-</span></tt><em>library-name</em> or <tt class="docutils literal"><span class="pre">--without-</span></tt><em>library-name</em> options</li> |
| <li>choosing a specific build variant by adding <tt class="docutils literal">release</tt> or |
| <tt class="docutils literal">debug</tt> to the command line.</li> |
| </ul> |
| <div class="note"> |
| <p class="first admonition-title">Note</p> |
| <p class="last">Boost.Build can produce a great deal of output, which can |
| make it easy to miss problems. If you want to make sure |
| everything is went well, you might redirect the output into a |
| file by appending “<tt class="docutils literal">>build.log <span class="pre">2>&1</span></tt>” to your command line.</p> |
| </div> |
| </div> |
| </div> |
| <div class="section" id="expected-build-output"> |
| <h2><a class="toc-backref" href="#id32">5.3 Expected Build Output</a></h2> |
| <p>During the process of building Boost libraries, you can expect to |
| see some messages printed on the console. These may include</p> |
| <ul> |
| <li><p class="first">Notices about Boost library configuration—for example, the Regex |
| library outputs a message about ICU when built without Unicode |
| support, and the Python library may be skipped without error (but |
| with a notice) if you don't have Python installed.</p> |
| </li> |
| <li><p class="first">Messages from the build tool that report the number of targets |
| that were built or skipped. Don't be surprised if those numbers |
| don't make any sense to you; there are many targets per library.</p> |
| </li> |
| <li><p class="first">Build action messages describing what the tool is doing, which |
| look something like:</p> |
| <pre class="literal-block"> |
| <em>toolset-name</em>.c++ <em>long</em>/<em>path</em>/<em>to</em>/<em>file</em>/<em>being</em>/<em>built</em> |
| </pre> |
| </li> |
| <li><p class="first">Compiler warnings.</p> |
| </li> |
| </ul> |
| </div> |
| <div class="section" id="in-case-of-build-errors"> |
| <h2><a class="toc-backref" href="#id33">5.4 In Case of Build Errors</a></h2> |
| <p>The only error messages you see when building Boost—if any—should |
| be related to the IOStreams library's support of zip and bzip2 |
| formats as described <a class="reference external" href="../../libs/iostreams/doc/installation.html">here</a>. Install the relevant development |
| packages for libz and libbz2 if you need those features. Other |
| errors when building Boost libraries are cause for concern.</p> |
| <p>If it seems like the build system can't find your compiler and/or |
| linker, consider setting up a <tt class="docutils literal"><span class="pre">user-config.jam</span></tt> file as described |
| <a class="reference external" href="http://www.boost.org/boost-build2/doc/html/bbv2/advanced/configuration.html">here</a>. If that isn't your problem or the <tt class="docutils literal"><span class="pre">user-config.jam</span></tt> file |
| doesn't work for you, please address questions about configuring Boost |
| for your compiler to the <a class="reference external" href="http://www.boost.org/more/mailing_lists.htm#jamboost">Boost.Build mailing list</a>.</p> |
| <!-- Copyright David Abrahams 2006. Distributed under the Boost --> |
| <!-- Software License, Version 1.0. (See accompanying --> |
| <!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) --> |
| </div> |
| </div> |
| <div class="section" id="link-your-program-to-a-boost-library"> |
| <h1><a class="toc-backref" href="#id34">6 Link Your Program to a Boost Library</a></h1> |
| <p>To demonstrate linking with a Boost binary library, we'll use the |
| following simple program that extracts the subject lines from |
| emails. It uses the <a class="reference external" href="../../libs/regex/index.html">Boost.Regex</a> library, which has a |
| separately-compiled binary component.</p> |
| <pre class="literal-block"> |
| #include <boost/regex.hpp> |
| #include <iostream> |
| #include <string> |
| |
| int main() |
| { |
| std::string line; |
| boost::regex pat( "^Subject: (Re: |Aw: )*(.*)" ); |
| |
| while (std::cin) |
| { |
| std::getline(std::cin, line); |
| boost::smatch matches; |
| if (boost::regex_match(line, matches, pat)) |
| std::cout << matches[2] << std::endl; |
| } |
| } |
| </pre> |
| <p>There are two main challenges associated with linking:</p> |
| <ol class="arabic simple"> |
| <li>Tool configuration, e.g. choosing command-line options or IDE |
| build settings.</li> |
| <li>Identifying the library binary, among all the build variants, |
| whose compile configuration is compatible with the rest of your |
| project.</li> |
| </ol> |
| <p>There are two main ways to link to libraries:</p> |
| <ol class="upperalpha"> |
| <li><p class="first">You can specify the full path to each library:</p> |
| <pre class="literal-block"> |
| $ c++ -I <em>path/to/</em><tt class="docutils literal">boost_1_45_0</tt> example.cpp -o example <strong>\</strong> |
| <strong>~/boost/stage/lib/libboost_regex-gcc34-mt-d-1_36.a</strong> |
| </pre> |
| </li> |
| <li><p class="first">You can separately specify a directory to search (with <tt class="docutils literal"><span class="pre">-L</span></tt><em>directory</em>) and a library name to search for (with <tt class="docutils literal"><span class="pre">-l</span></tt><em>library</em>,<a class="footnote-reference" href="#lowercase-l" id="id15"><sup>2</sup></a> dropping the filename's leading <tt class="docutils literal">lib</tt> and trailing |
| suffix (<tt class="docutils literal">.a</tt> in this case):</p> |
| <pre class="literal-block"> |
| $ c++ -I <em>path/to/</em><tt class="docutils literal">boost_1_45_0</tt> example.cpp -o example <strong>\</strong> |
| <strong>-L~/boost/stage/lib/ -lboost_regex-gcc34-mt-d-1_36</strong> |
| </pre> |
| <p>As you can see, this method is just as terse as method A for one |
| library; it <em>really</em> pays off when you're using multiple |
| libraries from the same directory. Note, however, that if you |
| use this method with a library that has both static (<tt class="docutils literal">.a</tt>) and |
| dynamic (<tt class="docutils literal">.so</tt>) builds, the system may choose one |
| automatically for you unless you pass a special option such as |
| <tt class="docutils literal"><span class="pre">-static</span></tt> on the command line.</p> |
| </li> |
| </ol> |
| <p>In both cases above, the bold text is what you'd add to <a class="reference internal" href="#build-a-simple-program-using-boost">the |
| command lines we explored earlier</a>.</p> |
| <div class="section" id="library-naming"> |
| <h2><a class="toc-backref" href="#id35">6.1 Library Naming</a></h2> |
| <!-- Copyright David Abrahams 2006. Distributed under the Boost --> |
| <!-- Software License, Version 1.0. (See accompanying --> |
| <!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) --> |
| <p>In order to choose the right binary for your build configuration |
| you need to know how Boost binaries are named. Each library |
| filename is composed of a common sequence of elements that describe |
| how it was built. For example, |
| <tt class="docutils literal"><span class="pre">libboost_regex-vc71-mt-d-1_34.lib</span></tt> can be broken down into the |
| following elements:</p> |
| <dl class="docutils"> |
| <dt><tt class="docutils literal">lib</tt></dt> |
| <dd><em>Prefix</em>: except on Microsoft Windows, every Boost library |
| name begins with this string. On Windows, only ordinary static |
| libraries use the <tt class="docutils literal">lib</tt> prefix; import libraries and DLLs do |
| not.<a class="footnote-reference" href="#distinct" id="id17"><sup>4</sup></a></dd> |
| <dt><tt class="docutils literal">boost_regex</tt></dt> |
| <dd><em>Library name</em>: all boost library filenames begin with <tt class="docutils literal">boost_</tt>.</dd> |
| <dt><tt class="docutils literal"><span class="pre">-vc71</span></tt></dt> |
| <dd><em>Toolset tag</em>: identifies the <a class="reference internal" href="#toolset">toolset</a> and version used to build |
| the binary.</dd> |
| <dt><tt class="docutils literal"><span class="pre">-mt</span></tt></dt> |
| <dd><em>Threading tag</em>: indicates that the library was |
| built with multithreading support enabled. Libraries built |
| without multithreading support can be identified by the absence |
| of <tt class="docutils literal"><span class="pre">-mt</span></tt>.</dd> |
| <dt><tt class="docutils literal"><span class="pre">-d</span></tt></dt> |
| <dd><p class="first"><em>ABI tag</em>: encodes details that affect the library's |
| interoperability with other compiled code. For each such |
| feature, a single letter is added to the tag:</p> |
| <blockquote> |
| <table border="1" class="docutils"> |
| <colgroup> |
| <col width="5%" /> |
| <col width="75%" /> |
| <col width="20%" /> |
| </colgroup> |
| <thead valign="bottom"> |
| <tr><th class="head">Key</th> |
| <th class="head">Use this library when:</th> |
| <th class="head">Boost.Build option</th> |
| </tr> |
| </thead> |
| <tbody valign="top"> |
| <tr><td><tt class="docutils literal">s</tt></td> |
| <td>linking statically to the C++ standard library and compiler runtime support |
| libraries.</td> |
| <td>runtime-link=static</td> |
| </tr> |
| <tr><td><tt class="docutils literal">g</tt></td> |
| <td>using debug versions of the standard and runtime support libraries.</td> |
| <td>runtime-debugging=on</td> |
| </tr> |
| <tr><td><tt class="docutils literal">y</tt></td> |
| <td>using a special <a class="reference external" href="../../libs/python/doc/building.html#variants">debug build of Python</a>.</td> |
| <td>python-debugging=on</td> |
| </tr> |
| <tr><td><tt class="docutils literal">d</tt></td> |
| <td>building a debug version of your code.<a class="footnote-reference" href="#debug-abi" id="id18"><sup>5</sup></a></td> |
| <td>variant=debug</td> |
| </tr> |
| <tr><td><tt class="docutils literal">p</tt></td> |
| <td>using the STLPort standard library rather than the default one supplied with |
| your compiler.</td> |
| <td>stdlib=stlport</td> |
| </tr> |
| </tbody> |
| </table> |
| </blockquote> |
| <p class="last">For example, if you build a debug version of your code for use |
| with debug versions of the static runtime library and the |
| STLPort standard library in “native iostreams” mode, |
| the tag would be: <tt class="docutils literal"><span class="pre">-sgdpn</span></tt>. If none of the above apply, the |
| ABI tag is ommitted.</p> |
| </dd> |
| <dt><tt class="docutils literal"><span class="pre">-1_34</span></tt></dt> |
| <dd><em>Version tag</em>: the full Boost release number, with periods |
| replaced by underscores. For example, version 1.31.1 would be |
| tagged as "-1_31_1".</dd> |
| <dt><tt class="docutils literal">.lib</tt></dt> |
| <dd><em>Extension</em>: determined according to the operating system's usual |
| convention. On most unix-style platforms the extensions are |
| <tt class="docutils literal">.a</tt> and <tt class="docutils literal">.so</tt> for static libraries (archives) and shared |
| libraries, respectively. On Windows, <tt class="docutils literal">.dll</tt> indicates a shared |
| library and <tt class="docutils literal">.lib</tt> indicates a |
| static or import library. Where supported by toolsets on unix |
| variants, a full version extension is added (e.g. ".so.1.34") and |
| a symbolic link to the library file, named without the trailing |
| version number, will also be created.</dd> |
| </dl> |
| <!-- .. _Boost.Build toolset names: toolset-name_ --> |
| <!-- Copyright David Abrahams 2006. Distributed under the Boost --> |
| <!-- Software License, Version 1.0. (See accompanying --> |
| <!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) --> |
| </div> |
| <div class="section" id="test-your-program"> |
| <h2><a class="toc-backref" href="#id36">6.2 Test Your Program</a></h2> |
| <p>To test our subject extraction, we'll filter the following text |
| file. Copy it out of your browser and save it as <tt class="docutils literal">jayne.txt</tt>:</p> |
| <pre class="literal-block"> |
| To: George Shmidlap |
| From: Rita Marlowe |
| Subject: Will Success Spoil Rock Hunter? |
| --- |
| See subject. |
| </pre> |
| <p>If you linked to a shared library, you may need to prepare some |
| platform-specific settings so that the system will be able to find |
| and load it when your program is run. Most platforms have an |
| environment variable to which you can add the directory containing |
| the library. On many platforms (Linux, FreeBSD) that variable is |
| <tt class="docutils literal">LD_LIBRARY_PATH</tt>, but on MacOS it's <tt class="docutils literal">DYLD_LIBRARY_PATH</tt>, and |
| on Cygwin it's simply <tt class="docutils literal">PATH</tt>. In most shells other than <tt class="docutils literal">csh</tt> |
| and <tt class="docutils literal">tcsh</tt>, you can adjust the variable as follows (again, don't |
| type the <tt class="docutils literal">$</tt>—that represents the shell prompt):</p> |
| <pre class="literal-block"> |
| <strong>$</strong> <em>VARIABLE_NAME</em>=<em>path/to/lib/directory</em>:${<em>VARIABLE_NAME</em>} |
| <strong>$</strong> export <em>VARIABLE_NAME</em> |
| </pre> |
| <p>On <tt class="docutils literal">csh</tt> and <tt class="docutils literal">tcsh</tt>, it's</p> |
| <pre class="literal-block"> |
| <strong>$</strong> setenv <em>VARIABLE_NAME</em> <em>path/to/lib/directory</em>:${<em>VARIABLE_NAME</em>} |
| </pre> |
| <p>Once the necessary variable (if any) is set, you can run your |
| program as follows:</p> |
| <pre class="literal-block"> |
| <strong>$</strong> <em>path</em>/<em>to</em>/<em>compiled</em>/example < <em>path</em>/<em>to</em>/jayne.txt |
| </pre> |
| <p>The program should respond with the email subject, “Will Success |
| Spoil Rock Hunter?”</p> |
| <!-- Copyright David Abrahams 2006. Distributed under the Boost --> |
| <!-- Software License, Version 1.0. (See accompanying --> |
| <!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) --> |
| </div> |
| </div> |
| <div class="section" id="conclusion-and-further-resources"> |
| <h1><a class="toc-backref" href="#id37">7 Conclusion and Further Resources</a></h1> |
| <p>This concludes your introduction to Boost and to integrating it |
| with your programs. As you start using Boost in earnest, there are |
| surely a few additional points you'll wish we had covered. One day |
| we may have a “Book 2 in the Getting Started series” that addresses |
| them. Until then, we suggest you pursue the following resources. |
| If you can't find what you need, or there's anything we can do to |
| make this document clearer, please post it to the <a class="reference external" href="http://www.boost.org/more/mailing_lists.htm#users">Boost Users' |
| mailing list</a>.</p> |
| <ul class="simple"> |
| <li><a class="reference external" href="../../tools/build/v2/index.html">Boost.Build reference manual</a></li> |
| <li><a class="reference external" href="../../tools/build/v2/engine/index.html">Boost.Jam reference manual</a></li> |
| <li><a class="reference external" href="http://www.boost.org/more/mailing_lists.htm#users">Boost Users' mailing list</a></li> |
| <li><a class="reference external" href="http://www.boost.org/more/mailing_lists.htm#jamboost">Boost.Build mailing list</a></li> |
| <li><a class="reference external" href="http://www.crystalclearsoftware.com/cgi-bin/boost_wiki/wiki.pl?Boost.Build_V2">Boost.Build Wiki</a></li> |
| <li><a class="reference external" href="../../libs/index.html">Index of all Boost library documentation</a></li> |
| </ul> |
| <div class="admonition-onward admonition"> |
| <p class="first admonition-title">Onward</p> |
| <blockquote class="epigraph last"> |
| <p>Good luck, and have fun!</p> |
| <p class="attribution">—the Boost Developers</p> |
| </blockquote> |
| </div> |
| <hr class="docutils" /> |
| <table class="docutils footnote" frame="void" id="packagers" rules="none"> |
| <colgroup><col class="label" /><col /></colgroup> |
| <tbody valign="top"> |
| <tr><td class="label"><a class="fn-backref" href="#id2">[1]</a></td><td>If developers of Boost packages would like to work |
| with us to make sure these instructions can be used with their |
| packages, we'd be glad to help. Please make your interest known |
| to the <a class="reference external" href="http://www.boost.org/more/mailing_lists.htm#main">Boost developers' list</a>.</td></tr> |
| </tbody> |
| </table> |
| <table class="docutils footnote" frame="void" id="lowercase-l" rules="none"> |
| <colgroup><col class="label" /><col /></colgroup> |
| <tbody valign="top"> |
| <tr><td class="label"><a class="fn-backref" href="#id15">[2]</a></td><td>That option is a dash followed by a lowercase “L” |
| character, which looks very much like a numeral 1 in some fonts.</td></tr> |
| </tbody> |
| </table> |
| <!-- Copyright David Abrahams 2006. Distributed under the Boost --> |
| <!-- Software License, Version 1.0. (See accompanying --> |
| <!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) --> |
| <table class="docutils footnote" frame="void" id="warnings" rules="none"> |
| <colgroup><col class="label" /><col /></colgroup> |
| <tbody valign="top"> |
| <tr><td class="label"><a class="fn-backref" href="#id5">[3]</a></td><td>Remember that warnings are specific to each compiler |
| implementation. The developer of a given Boost library might |
| not have access to your compiler. Also, some warnings are |
| extremely difficult to eliminate in generic code, to the point |
| where it's not worth the trouble. Finally, some compilers don't |
| have any source code mechanism for suppressing warnings.</td></tr> |
| </tbody> |
| </table> |
| <table class="docutils footnote" frame="void" id="distinct" rules="none"> |
| <colgroup><col class="label" /><col /></colgroup> |
| <tbody valign="top"> |
| <tr><td class="label"><a class="fn-backref" href="#id17">[4]</a></td><td>This convention distinguishes the static version of |
| a Boost library from the import library for an |
| identically-configured Boost DLL, which would otherwise have the |
| same name.</td></tr> |
| </tbody> |
| </table> |
| <table class="docutils footnote" frame="void" id="debug-abi" rules="none"> |
| <colgroup><col class="label" /><col /></colgroup> |
| <tbody valign="top"> |
| <tr><td class="label"><a class="fn-backref" href="#id18">[5]</a></td><td>These libraries were compiled without optimization |
| or inlining, with full debug symbols enabled, and without |
| <tt class="docutils literal">NDEBUG</tt> <tt class="docutils literal">#define</tt>d. Although it's true that sometimes |
| these choices don't affect binary compatibility with other |
| compiled code, you can't count on that with Boost libraries.</td></tr> |
| </tbody> |
| </table> |
| <table class="docutils footnote" frame="void" id="native" rules="none"> |
| <colgroup><col class="label" /><col /></colgroup> |
| <tbody valign="top"> |
| <tr><td class="label">[6]</td><td>This feature of STLPort is deprecated because it's |
| impossible to make it work transparently to the user; we don't |
| recommend it.</td></tr> |
| </tbody> |
| </table> |
| <!-- Copyright David Abrahams 2006. Distributed under the Boost --> |
| <!-- Software License, Version 1.0. (See accompanying --> |
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| <!-- Copyright David Abrahams 2006. Distributed under the Boost --> |
| <!-- Software License, Version 1.0. (See accompanying --> |
| <!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) --> |
| <!-- Copyright David Abrahams 2006. Distributed under the Boost --> |
| <!-- Software License, Version 1.0. (See accompanying --> |
| <!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) --> |
| <!-- Copyright David Abrahams 2006. Distributed under the Boost --> |
| <!-- Software License, Version 1.0. (See accompanying --> |
| <!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) --> |
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