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