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| 24 | </div> |
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| 25 | <div class="appendix" lang="en"> |
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| 26 | <div class="titlepage"><div><div><h2 class="title"> |
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| 27 | <a name="bbv2.vs_v1"></a>Appendix B. Differences to Boost.Build V1</h2></div></div></div> |
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| 28 | <div class="toc"> |
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| 29 | <p><b>Table of Contents</b></p> |
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| 30 | <dl> |
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| 31 | <dt><span class="section"><a href="vs_v1.html#bbv2.advanced.differences_to_v1.configuration">Configuration</a></span></dt> |
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| 32 | <dt><span class="section"><a href="advanced/differences_to_v1/jamfiles.html">Writing Jamfiles</a></span></dt> |
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| 33 | <dt><span class="section"><a href="advanced/differences_to_v1/build_process.html">Build process</a></span></dt> |
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| 34 | </dl> |
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| 35 | </div> |
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| 36 | <p>While Boost.Build V2 is based on the same ideas as Boost.Build V1, |
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| 37 | some of the syntax was changed, and some new important features were |
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| 38 | added. This chapter describes most of the changes.</p> |
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| 39 | <div class="section" lang="en"> |
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| 40 | <div class="titlepage"><div><div><h3 class="title"> |
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| 41 | <a name="bbv2.advanced.differences_to_v1.configuration"></a>Configuration</h3></div></div></div> |
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| 42 | <p>In V1, toolsets were configured by environment variables. If you |
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| 43 | wanted to use two versions of the same toolset, you had to create a new |
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| 44 | toolset module that would set the variables and then invoke the base |
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| 45 | toolset. In V2, toolsets are configured by the |
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| 46 | <code class="computeroutput">using</code>, and you can easily configure several |
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| 47 | versions of a toolset. See <a href="advanced.html#bbv2.advanced.configuration" title="Configuration">the section called “Configuration”</a> for details. |
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| 48 | </p> |
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| 58 | </div> |
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| 59 | </body> |
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| 60 | </html> |
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