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<title>3/bs</title>
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<h1><a href="../webs.html">Sources</a></h1>
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</ul>
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<h2>Compiler Webs</h2>
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<h2>Inbuild Modules</h2>
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<h2>Inform7 Modules</h2>
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<li><a href="../building-module/index.html">building</a></li>
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<li><a href="../codegen-module/index.html">codegen</a></li>
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</ul>
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<h2>Foundation</h2>
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<ul>
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<li><a href="../../../inweb/docs/foundation-module/index.html">foundation</a></li>
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<main role="main">
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<!--Weave of '3/bs2' generated by 7-->
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<ul class="crumbs"><li><a href="../webs.html">Source</a></li><li><a href="../compiler.html">Compiler Modules</a></li><li><a href="index.html">inbuild</a></li><li><a href="index.html#3">Chapter 3: Incremental Builds</a></li><li><b>Build Steps</b></li></ul><p class="purpose">A build step is a task which exercises one of the build skills.</p>
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<ul class="toc"><li><a href="#SP1">§1. Build skills</a></li><li><a href="#SP3">§3. Build steps</a></li></ul><hr class="tocbar">
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<p class="inwebparagraph"><a id="SP1"></a><b>§1. Build skills. </b></p>
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<pre class="display">
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<span class="reserved">typedef</span><span class="plain"> </span><span class="reserved">struct</span><span class="plain"> </span><span class="reserved">build_skill</span><span class="plain"> {</span>
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<span class="reserved">struct</span><span class="plain"> </span><span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">name</span><span class="plain">;</span>
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<span class="identifier">METHOD_CALLS</span>
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<span class="identifier">MEMORY_MANAGEMENT</span>
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<span class="plain">} </span><span class="reserved">build_skill</span><span class="plain">;</span>
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<span class="reserved">build_skill</span><span class="plain"> *</span><span class="functiontext">BuildSteps::new_skill</span><span class="plain">(</span><span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">name</span><span class="plain">) {</span>
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<span class="reserved">build_skill</span><span class="plain"> *</span><span class="identifier">S</span><span class="plain"> = </span><span class="identifier">CREATE</span><span class="plain">(</span><span class="reserved">build_skill</span><span class="plain">);</span>
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<span class="identifier">S</span><span class="plain">-</span><span class="element">>name</span><span class="plain"> = </span><span class="identifier">Str::duplicate</span><span class="plain">(</span><span class="identifier">name</span><span class="plain">);</span>
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<span class="identifier">ENABLE_METHOD_CALLS</span><span class="plain">(</span><span class="identifier">S</span><span class="plain">);</span>
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<span class="reserved">return</span><span class="plain"> </span><span class="identifier">S</span><span class="plain">;</span>
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<span class="plain">}</span>
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</pre>
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<p class="inwebparagraph"></p>
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<p class="endnote">The function BuildSteps::new_skill is used in 3/is (<a href="3-is.html#SP1">§1</a>), 3/is2 (<a href="3-is2.html#SP1">§1</a>), 3/is3 (<a href="3-is3.html#SP1">§1</a>), 3/is4 (<a href="3-is4.html#SP1">§1</a>).</p>
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<p class="endnote">The structure build_skill is private to this section.</p>
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<p class="inwebparagraph"><a id="SP2"></a><b>§2. </b></p>
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<pre class="definitions">
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<span class="definitionkeyword">enum</span> <span class="constant">BUILD_SKILL_COMMAND_MTID</span>
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<span class="definitionkeyword">enum</span> <span class="constant">BUILD_SKILL_INTERNAL_MTID</span>
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</pre>
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<pre class="display">
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<span class="identifier">VMETHOD_TYPE</span><span class="plain">(</span><span class="constant">BUILD_SKILL_COMMAND_MTID</span><span class="plain">,</span>
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<span class="reserved">build_skill</span><span class="plain"> *</span><span class="identifier">S</span><span class="plain">, </span><span class="reserved">build_step</span><span class="plain"> *</span><span class="identifier">BS</span><span class="plain">, </span><span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">command</span><span class="plain">, </span><span class="reserved">build_methodology</span><span class="plain"> *</span><span class="identifier">meth</span><span class="plain">)</span>
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<span class="identifier">IMETHOD_TYPE</span><span class="plain">(</span><span class="constant">BUILD_SKILL_INTERNAL_MTID</span><span class="plain">,</span>
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<span class="reserved">build_skill</span><span class="plain"> *</span><span class="identifier">S</span><span class="plain">, </span><span class="reserved">build_step</span><span class="plain"> *</span><span class="identifier">BS</span><span class="plain">, </span><span class="reserved">build_methodology</span><span class="plain"> *</span><span class="identifier">meth</span><span class="plain">)</span>
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</pre>
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<p class="inwebparagraph"></p>
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<p class="inwebparagraph"><a id="SP3"></a><b>§3. Build steps. </b></p>
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<pre class="display">
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<span class="reserved">typedef</span><span class="plain"> </span><span class="reserved">struct</span><span class="plain"> </span><span class="reserved">build_step</span><span class="plain"> {</span>
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<span class="reserved">struct</span><span class="plain"> </span><span class="reserved">build_skill</span><span class="plain"> *</span><span class="identifier">what_to_do</span><span class="plain">;</span>
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<span class="reserved">struct</span><span class="plain"> </span><span class="reserved">build_vertex</span><span class="plain"> *</span><span class="identifier">vertex</span><span class="plain">;</span>
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<span class="reserved">struct</span><span class="plain"> </span><span class="identifier">linked_list</span><span class="plain"> *</span><span class="identifier">search_path</span><span class="plain">; </span> <span class="comment">of <code class="display"><span class="extract">inbuild_nest</span></code></span>
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<span class="reserved">struct</span><span class="plain"> </span><span class="identifier">target_vm</span><span class="plain"> *</span><span class="identifier">for_vm</span><span class="plain">;</span>
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<span class="reserved">struct</span><span class="plain"> </span><span class="identifier">inter_architecture</span><span class="plain"> *</span><span class="identifier">for_arch</span><span class="plain">;</span>
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<span class="reserved">int</span><span class="plain"> </span><span class="identifier">for_release</span><span class="plain">;</span>
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<span class="reserved">struct</span><span class="plain"> </span><span class="reserved">inbuild_copy</span><span class="plain"> *</span><span class="identifier">associated_copy</span><span class="plain">;</span>
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<span class="identifier">MEMORY_MANAGEMENT</span>
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<span class="plain">} </span><span class="reserved">build_step</span><span class="plain">;</span>
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</pre>
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<p class="inwebparagraph"></p>
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<p class="endnote">The structure build_step is accessed in 2/cps, 3/bg, 3/is, 3/is2, 3/is3, 3/is4, 4/km, 4/em, 5/kts, 5/ps, 6/hdn, 6/inc and here.</p>
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<p class="inwebparagraph"><a id="SP4"></a><b>§4. </b></p>
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<pre class="display">
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<span class="reserved">build_step</span><span class="plain"> *</span><span class="functiontext">BuildSteps::attach</span><span class="plain">(</span><span class="reserved">build_vertex</span><span class="plain"> *</span><span class="identifier">vertex</span><span class="plain">, </span><span class="reserved">build_skill</span><span class="plain"> *</span><span class="identifier">to_do</span><span class="plain">, </span><span class="identifier">linked_list</span><span class="plain"> *</span><span class="identifier">search</span><span class="plain">,</span>
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<span class="reserved">int</span><span class="plain"> </span><span class="identifier">rel</span><span class="plain">, </span><span class="identifier">target_vm</span><span class="plain"> *</span><span class="identifier">VM</span><span class="plain">, </span><span class="identifier">inter_architecture</span><span class="plain"> *</span><span class="identifier">arch</span><span class="plain">, </span><span class="reserved">inbuild_copy</span><span class="plain"> *</span><span class="identifier">assoc</span><span class="plain">) {</span>
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<span class="reserved">build_step</span><span class="plain"> *</span><span class="identifier">S</span><span class="plain"> = </span><span class="identifier">CREATE</span><span class="plain">(</span><span class="reserved">build_step</span><span class="plain">);</span>
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<span class="identifier">S</span><span class="plain">-</span><span class="element">>vertex</span><span class="plain"> = </span><span class="identifier">vertex</span><span class="plain">;</span>
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<span class="identifier">S</span><span class="plain">-</span><span class="element">>what_to_do</span><span class="plain"> = </span><span class="identifier">to_do</span><span class="plain">;</span>
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<span class="identifier">S</span><span class="plain">-</span><span class="element">>search_path</span><span class="plain"> = </span><span class="identifier">search</span><span class="plain">;</span>
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<span class="identifier">S</span><span class="plain">-</span><span class="element">>for_vm</span><span class="plain"> = </span><span class="identifier">VM</span><span class="plain">;</span>
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<span class="identifier">S</span><span class="plain">-</span><span class="element">>for_arch</span><span class="plain"> = </span><span class="identifier">arch</span><span class="plain">;</span>
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<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">VM</span><span class="plain">) && (</span><span class="identifier">arch</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">)) </span><span class="identifier">S</span><span class="plain">-</span><span class="element">>for_arch</span><span class="plain"> = </span><span class="identifier">TargetVMs::get_architecture</span><span class="plain">(</span><span class="identifier">VM</span><span class="plain">);</span>
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<span class="identifier">S</span><span class="plain">-</span><span class="element">>for_release</span><span class="plain"> = </span><span class="identifier">rel</span><span class="plain">;</span>
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<span class="identifier">S</span><span class="plain">-</span><span class="element">>associated_copy</span><span class="plain"> = </span><span class="identifier">assoc</span><span class="plain">;</span>
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<span class="functiontext">BuildScripts::add_step</span><span class="plain">(</span><span class="identifier">vertex</span><span class="plain">-</span><span class="element">>script</span><span class="plain">, </span><span class="identifier">S</span><span class="plain">);</span>
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<span class="reserved">return</span><span class="plain"> </span><span class="identifier">S</span><span class="plain">;</span>
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<span class="plain">}</span>
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<span class="reserved">int</span><span class="plain"> </span><span class="functiontext">BuildSteps::execute</span><span class="plain">(</span><span class="reserved">build_vertex</span><span class="plain"> *</span><span class="identifier">V</span><span class="plain">, </span><span class="reserved">build_step</span><span class="plain"> *</span><span class="identifier">S</span><span class="plain">, </span><span class="reserved">build_methodology</span><span class="plain"> *</span><span class="identifier">meth</span><span class="plain">) {</span>
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<span class="comment">PRINT("Exec %S %d\n", S->what_to_do->name, meth->methodology);</span>
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<span class="reserved">int</span><span class="plain"> </span><span class="identifier">rv</span><span class="plain"> = </span><span class="identifier">TRUE</span><span class="plain">;</span>
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<span class="identifier">TEMPORARY_TEXT</span><span class="plain">(</span><span class="identifier">command</span><span class="plain">);</span>
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<span class="identifier">VMETHOD_CALL</span><span class="plain">(</span><span class="identifier">S</span><span class="plain">-</span><span class="element">>what_to_do</span><span class="plain">, </span><span class="constant">BUILD_SKILL_COMMAND_MTID</span><span class="plain">, </span><span class="identifier">S</span><span class="plain">, </span><span class="identifier">command</span><span class="plain">, </span><span class="identifier">meth</span><span class="plain">);</span>
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<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">rv</span><span class="plain">) && (</span><span class="identifier">Str::len</span><span class="plain">(</span><span class="identifier">command</span><span class="plain">) > 0)) </span><span class="identifier">rv</span><span class="plain"> = </span><span class="functiontext">BuildSteps::shell</span><span class="plain">(</span><span class="identifier">command</span><span class="plain">, </span><span class="identifier">meth</span><span class="plain">);</span>
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<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">rv</span><span class="plain">) && (</span><span class="identifier">meth</span><span class="plain">-</span><span class="element">>methodology</span><span class="plain"> == </span><span class="constant">INTERNAL_METHODOLOGY</span><span class="plain">)) {</span>
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<span class="reserved">int</span><span class="plain"> </span><span class="identifier">returned</span><span class="plain"> = 0;</span>
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<span class="identifier">IMETHOD_CALL</span><span class="plain">(</span><span class="identifier">returned</span><span class="plain">, </span><span class="identifier">S</span><span class="plain">-</span><span class="element">>what_to_do</span><span class="plain">, </span><span class="constant">BUILD_SKILL_INTERNAL_MTID</span><span class="plain">, </span><span class="identifier">S</span><span class="plain">, </span><span class="identifier">meth</span><span class="plain">);</span>
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<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">returned</span><span class="plain"> != </span><span class="identifier">TRUE</span><span class="plain">) </span><span class="identifier">rv</span><span class="plain"> = </span><span class="identifier">FALSE</span><span class="plain">;</span>
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<span class="plain">}</span>
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<span class="plain">#</span><span class="identifier">ifndef</span><span class="plain"> </span><span class="identifier">CORE_MODULE</span>
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<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">rv</span><span class="plain"> == </span><span class="identifier">FALSE</span><span class="plain">) </span><span class="identifier">WRITE_TO</span><span class="plain">(</span><span class="identifier">STDERR</span><span class="plain">, </span><span class="string">"Build failed at '%S'\</span><span class="plain">n</span><span class="string">"</span><span class="plain">, </span><span class="identifier">command</span><span class="plain">);</span>
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<span class="plain">#</span><span class="identifier">endif</span>
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<span class="identifier">DISCARD_TEXT</span><span class="plain">(</span><span class="identifier">command</span><span class="plain">);</span>
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<span class="reserved">return</span><span class="plain"> </span><span class="identifier">rv</span><span class="plain">;</span>
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<span class="plain">}</span>
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<span class="reserved">int</span><span class="plain"> </span><span class="functiontext">BuildSteps::shell</span><span class="plain">(</span><span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">command</span><span class="plain">, </span><span class="reserved">build_methodology</span><span class="plain"> *</span><span class="identifier">meth</span><span class="plain">) {</span>
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<span class="reserved">int</span><span class="plain"> </span><span class="identifier">rv</span><span class="plain"> = </span><span class="identifier">TRUE</span><span class="plain">;</span>
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<span class="plain">#</span><span class="identifier">ifndef</span><span class="plain"> </span><span class="identifier">CORE_MODULE</span>
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<span class="identifier">WRITE_TO</span><span class="plain">(</span><span class="identifier">STDOUT</span><span class="plain">, </span><span class="string">"%S\</span><span class="plain">n</span><span class="string">"</span><span class="plain">, </span><span class="identifier">command</span><span class="plain">);</span>
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<span class="plain">#</span><span class="identifier">endif</span>
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<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">meth</span><span class="plain">-</span><span class="element">>methodology</span><span class="plain"> == </span><span class="constant">SHELL_METHODOLOGY</span><span class="plain">) </span><span class="identifier">rv</span><span class="plain"> = (</span><span class="identifier">Shell::run</span><span class="plain">(</span><span class="identifier">command</span><span class="plain">) == 0)?</span><span class="identifier">TRUE</span><span class="plain">:</span><span class="identifier">FALSE</span><span class="plain">;</span>
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<span class="reserved">return</span><span class="plain"> </span><span class="identifier">rv</span><span class="plain">;</span>
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<span class="plain">}</span>
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</pre>
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<p class="inwebparagraph"></p>
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<p class="endnote">The function BuildSteps::attach is used in 5/kts (<a href="5-kts.html#SP2">§2</a>), 5/ps (<a href="5-ps.html#SP3">§3</a>).</p>
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<p class="endnote">The function BuildSteps::execute is used in 3/bs (<a href="3-bs.html#SP1">§1</a>).</p>
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<p class="endnote">The function BuildSteps::shell is used in 4/em (<a href="4-em.html#SP8">§8</a>), 4/pm (<a href="4-pm.html#SP7">§7</a>).</p>
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<hr class="tocbar">
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<ul class="toc"><li><a href="3-bs.html">Back to 'Build Scripts'</a></li><li><a href="3-is.html">Continue with 'Inter Skill'</a></li></ul><hr class="tocbar">
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