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        <p>Library Version 12.1.6.1</p>
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          <th colspan="3" align="center">Additional build options</th>
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          <td width="20%" align="left"><a accesskey="p" href="win_build_dist_dll.html">Prev</a> </td>
          <th width="60%" align="center">Chapter 5.  Building Berkeley DB for Windows </th>
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    <div class="sect1" lang="en" xml:lang="en">
      <div class="titlepage">
        <div>
          <div>
            <h2 class="title" style="clear: both"><a id="win_additional_options"></a>Additional build options</h2>
          </div>
        </div>
      </div>
      <p>
        There are several build options that you can configure when
        building Berkeley DB on Windows. To specify these, select
        <code class="literal">Project
        Properties</code>-&gt;<code class="literal">C/C++</code>-&gt;<code class="literal">Command
        Line</code> and add the property. 
    </p>
      <p> 
        These are some of the additional properties that you can
        specify when you are building Berkeley DB on Windows: 
    </p>
      <div class="itemizedlist">
        <ul type="disc">
          <li>
            <p><a id="HAVE_FAILCHK_BROADCAST"></a>
                Enable failchk broadcasting. This feature allows
                <a href="../api_reference/C/envfailchk.html" class="olink">DB_ENV-&gt;failchk()</a> to inform all processes in the environment
                that a failure has occurred. Those processes will return
                <a href="../programmer_reference/program_errorret.html#program_errorret.DB_RUNRECOVERY" class="olink">
                    DB_RUNRECOVERY
                </a>
                rather than hanging for an indefinite amount of time.
            </p>
          </li>
          <li>
            <p><a id="HAVE_LOCALIZATION"></a>
                <span class="bold"><strong>/D HAVE_LOCALIZATION</strong></span>
            </p>
            <p> 
                Enable localized error message text, if available.
                This option should not be used when enabling stripped
                messages.
            </p>
          </li>
          <li>
            <p><a id="HAVE_MIXED_SIZE_ADDRESSING"></a>
                <span class="bold"><strong>/D
                HAVE_MIXED_SIZE_ADDRESSING</strong></span>
            </p>
            <p> 
                Allows for the sharing of the BDB database
                environment between 32-bit and 64-bit applications.
                Note that if you use this macro to rebuild your
                Berkeley DB library, then you need to also rebuild
                both your 32-bit and 64-bit applications using
                <span class="bold"><strong>/D
                HAVE_MIXED_SIZE_ADDRESSING</strong></span>. 
            </p>
            <p> 
                Note that use of this macro means that private
                environments are disabled for the library.
            </p>
          </li>
          <li>
            <p><a id="HAVE_STRIPPED_MESSAGES"></a>
                <span class="bold"><strong>/D
                    HAVE_STRIPPED_MESSAGES</strong></span>
            </p>
            <p>
                Causes all error messages to be stripped of their
                textual information. This option should not be used
                when enabling localization support. Use of this
                property can reduce your library footprint by up to
                42KB (for DLLs) or 98KB (for a .lib). 
            </p>
            <p> 
                Note that this option is automatically enabled if
                you build using the <code class="filename">db_small</code>
                project name. For more information on building a small
                library, see <a class="xref" href="build_win_small.html" title="Building a small memory footprint library">Building a small memory
        footprint library</a>. 
            </p>
            <p>
                If you use this build option, you can get an idea
                of what text should be issued for a given error
                message by using the <a href="../articles/mssgtxt/index.html" class="olink">Berkeley DB Message Reference Guide</a>.
            </p>
          </li>
          <li>
            <p><a id="DIAGNOSTIC"></a>
                <span class="bold"><strong>/D DIAGNOSTIC</strong></span>
            </p>
            <p> 
                Included automatically in the Debug build. Allows a
                number of additional checks to be performed when BDB
                is running, and also causes some failures to trigger
                process abort rather than returning errors to the
                application. Applications built using this option
                should not share database environments with
                applications built without this option. The
                <code class="literal">DIAGNOSTIC</code> option should not be
                specified when configuring to build production
                binaries because it degrades performance. 
            </p>
          </li>
          <li>
            <p><a id="UMRW"></a>
                <span class="bold"><strong>/D UMRW</strong></span>
            </p>
            <p> 
                Rational Software's Purify product and other
                software analysis run-time tools complain about
                uninitialized reads/writes of structure fields whose
                only purpose is padding, as well as when heap memory
                that was never initialized is written to disk. Specify
                this option during configuration to mask these errors.
                The <code class="literal">UMRW</code> option should not be
                specified when configuring to build production
                binaries.
            </p>
          </li>
        </ul>
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