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- <a name="boost_regex.install"></a><a class="link" href="install.html" title="Building and Installing the Library">Building and Installing the Library</a>
- </h2></div></div></div>
- <p>
- When you extract the library from its zip file, you must preserve its internal
- directory structure (for example by using the -d option when extracting). If
- you didn't do that when extracting, then you'd better stop reading this, delete
- the files you just extracted, and try again!
- </p>
- <p>
- This library should not need configuring before use; most popular compilers/standard
- libraries/platforms are already supported "as is". If you do experience
- configuration problems, or just want to test the configuration with your compiler,
- then the process is the same as for all of boost; see the <a href="../../../../config/index.html" target="_top">configuration
- library documentation</a>.
- </p>
- <p>
- The library will encase all code inside namespace boost.
- </p>
- <p>
- Unlike some other template libraries, this library consists of a mixture of
- template code (in the headers) and static code and data (in cpp files). Consequently
- it is necessary to build the library's support code into a library or archive
- file before you can use it, instructions for specific platforms are as follows:
- </p>
- <h5>
- <a name="boost_regex.install.h0"></a>
- <span class="phrase"><a name="boost_regex.install.building_with_bjam"></a></span><a class="link" href="install.html#boost_regex.install.building_with_bjam">Building
- with bjam</a>
- </h5>
- <p>
- This is now the preferred method for building and installing this library,
- please refer to the <a href="../../../../../more/getting_started.html" target="_top">getting
- started guide</a> for more information.
- </p>
- <h5>
- <a name="boost_regex.install.h1"></a>
- <span class="phrase"><a name="boost_regex.install.building_with_unicode_and_icu_su"></a></span><a class="link" href="install.html#boost_regex.install.building_with_unicode_and_icu_su">Building
- With Unicode and ICU Support</a>
- </h5>
- <p>
- Boost.Regex is now capable of performing a configuration check to test whether
- ICU is already installed in your compiler's search paths. When you build you
- should see a message like this:
- </p>
- <pre class="programlisting"><span class="identifier">Performing</span> <span class="identifier">configuration</span> <span class="identifier">checks</span>
- <span class="special">-</span> <span class="identifier">has_icu</span> <span class="identifier">builds</span> <span class="special">:</span> <span class="identifier">yes</span>
- </pre>
- <p>
- Which means that ICU has been found, and support for it will be enabled in
- the library build.
- </p>
- <div class="tip"><table border="0" summary="Tip">
- <tr>
- <td rowspan="2" align="center" valign="top" width="25"><img alt="[Tip]" src="../../../../../doc/src/images/tip.png"></td>
- <th align="left">Tip</th>
- </tr>
- <tr><td align="left" valign="top"><p>
- If you don't want the regex library to use ICU then build with the "--disable-icu"
- command line option.
- </p></td></tr>
- </table></div>
- <p>
- If instead you see:
- </p>
- <pre class="programlisting"><span class="identifier">Performing</span> <span class="identifier">configuration</span> <span class="identifier">checks</span>
- <span class="special">-</span> <span class="identifier">has_icu</span> <span class="identifier">builds</span> <span class="special">:</span> <span class="identifier">no</span>
- </pre>
- <p>
- Then ICU was not found and support for it will not be compiled into the library.
- If you think that it should have been found, then you will need to take a look
- at the contents of the file <span class="emphasis"><em>boost-root/bin.v2/config.log</em></span>
- for the actual error messages obtained when the build carried out the configuration
- check. You will then need to fix these errors by ensuring your compiler gets
- invoked with the correct options. The main options that you're likely to pass
- to <code class="computeroutput"><span class="identifier">b2</span></code> are:
- </p>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- Option
- </p>
- </th>
- <th>
- <p>
- Description
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- include=/some/path
- </p>
- </td>
- <td>
- <p>
- Adds "/some/path" to the list of paths seached for include
- files, normally equivalent to <code class="computeroutput"><span class="special">-</span><span class="identifier">I</span><span class="special">/</span><span class="identifier">some</span><span class="special">/</span><span class="identifier">path</span></code> on most compilers.
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- library-path=/some/path
- </p>
- </td>
- <td>
- <p>
- Adds "/some/path" to the list of paths searched for external
- libraries, set this to the location of the ICU binaries if they're
- in a non-standard location.
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- -sICU_ICUUC_NAME=NAME
- </p>
- </td>
- <td>
- <p>
- If <code class="computeroutput"><span class="identifier">libicuuc</span></code> has a
- non-standard name then this sets the name of the library linked against,
- defaults to either <code class="computeroutput"><span class="identifier">icuuc</span></code>,
- <code class="computeroutput"><span class="identifier">icuucd</span></code>, <code class="computeroutput"><span class="identifier">sicuuc</span></code> or <code class="computeroutput"><span class="identifier">sicuucd</span></code>
- depending on build options.
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- -sICU_ICUDT_NAME=NAME
- </p>
- </td>
- <td>
- <p>
- If <code class="computeroutput"><span class="identifier">libicudata</span></code> has
- a non-standard name then this sets the name of the library linked
- against, defaults to either <code class="computeroutput"><span class="identifier">icudt</span></code>,
- <code class="computeroutput"><span class="identifier">icudata</span></code>, <code class="computeroutput"><span class="identifier">sicudt</span></code> or <code class="computeroutput"><span class="identifier">sicudata</span></code>
- depending on build options and platform.
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- -sICU_ICUIN_NAME=NAME
- </p>
- </td>
- <td>
- <p>
- If <code class="computeroutput"><span class="identifier">libicui18n</span></code> has
- a non-standatd name then this sets the name of the library linked
- against, defaults to either <code class="computeroutput"><span class="identifier">icui18n</span></code>,
- <code class="computeroutput"><span class="identifier">icuin</span></code>, <code class="computeroutput"><span class="identifier">icuind</span></code>, sicuin<code class="computeroutput"> <span class="keyword">or</span>
- </code>sicuins` depending on build options and platform.
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- cxxstd=XX
- </p>
- </td>
- <td>
- <p>
- Sets the C++ standard supported: XX should be either 03, 11, 14,
- 17 or 2a.
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- cxxflags="FLAGS"
- </p>
- </td>
- <td>
- <p>
- Passes "FLAGS" directly to the compiler, an option of last
- resort!
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- linflags="FLAGS"
- </p>
- </td>
- <td>
- <p>
- Passes "FLAGS" directly to the compiler on the link step,
- an option of last resort!
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <div class="important"><table border="0" summary="Important">
- <tr>
- <td rowspan="2" align="center" valign="top" width="25"><img alt="[Important]" src="../../../../../doc/src/images/important.png"></td>
- <th align="left">Important</th>
- </tr>
- <tr><td align="left" valign="top"><p>
- Configuration results are cached - if you try rebuilding with different compiler
- options then add an "-a" to the bjam command line to force all
- targets to be rebuilt.
- </p></td></tr>
- </table></div>
- <div class="important"><table border="0" summary="Important">
- <tr>
- <td rowspan="2" align="center" valign="top" width="25"><img alt="[Important]" src="../../../../../doc/src/images/important.png"></td>
- <th align="left">Important</th>
- </tr>
- <tr><td align="left" valign="top"><p>
- ICU is a C++ library just like Boost is, as such your copy of ICU must have
- been built with the same C++ compiler (and compiler version) that you are
- using to build Boost. Boost.Regex will not work correctly unless you ensure
- that this is the case: it is up to you to ensure that the version of ICU
- you are using is binary compatible with the toolset you use to build Boost.
- </p></td></tr>
- </table></div>
- <p>
- And finally, if you want to build/test with multiple compiler versions, all
- with different ICU builds, then the only way to achieve that currently is to
- modify your user-config.jam so that each toolset has the necessary compiler/linker
- options set so that ICU is found automatically by the configuration step (providing
- the ICU binaries use the standard names, all you have to add is the appropriate
- header-include and linker-search paths).
- </p>
- <h5>
- <a name="boost_regex.install.h2"></a>
- <span class="phrase"><a name="boost_regex.install.building_from_source"></a></span><a class="link" href="install.html#boost_regex.install.building_from_source">Building
- from Source</a>
- </h5>
- <p>
- The Regex library is "just a bunch of source files": nothing special
- is required to build them.
- </p>
- <p>
- You can either build the files under boost-path/libs/regex/src/*.cpp as a library,
- or add them directly to your project. This is particularly useful if you need
- to use specific compiler options not supported by the default Boost build.
- </p>
- <p>
- There are two #defines you should be aware of:
- </p>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- BOOST_HAS_ICU should be defined if you want ICU support compiled in.
- </li>
- <li class="listitem">
- BOOST_REGEX_DYN_LINK should be defined if you are building a DLL on Windows.
- </li>
- </ul></div>
- </div>
- <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
- <td align="left"></td>
- <td align="right"><div class="copyright-footer">Copyright © 1998-2013 John Maddock<p>
- Distributed under the Boost Software License, Version 1.0. (See accompanying
- file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
- </p>
- </div></td>
- </tr></table>
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