
**Build Encyclopedia**

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  <li><a href="/versions/8.1.0/reference/be/overview.html">Overview</a></li>

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      Concepts <span class="caret"></span>
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      <li><a href="/versions/8.1.0/reference/be/common-definitions.html">Common Definitions</a></li>
      <li><a href="/versions/8.1.0/reference/be/make-variables.html">"Make" variables</a></li>
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      Rules <span class="caret"></span>
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  <li><a href="/versions/8.1.0/reference/be/functions.html">Functions</a></li>
    <li><a href="/versions/8.1.0/reference/be/c-cpp.html">C / C++</a></li>
      <li><a href="/versions/8.1.0/reference/be/java.html">Java</a></li>
      <li><a href="/versions/8.1.0/reference/be/objective-c.html">Objective-C</a></li>
      <li><a href="/versions/8.1.0/reference/be/protocol-buffer.html">Protocol Buffer</a></li>
      <li><a href="/versions/8.1.0/reference/be/python.html">Python</a></li>
      <li><a href="/versions/8.1.0/reference/be/shell.html">Shell</a></li>
      <li><a href="/versions/8.1.0/reference/be/extra-actions.html">Extra Actions</a></li>
      <li><a href="/versions/8.1.0/reference/be/general.html">General</a></li>
      <li><a href="/versions/8.1.0/reference/be/platforms-and-toolchains.html">Platforms and Toolchains</a></li>
      <li><a href="/versions/8.1.0/reference/be/workspace.html">Workspace</a></li>

  <li><a href="https://github.com/bazelbuild/rules_appengine" target="_blank" rel="noopener">AppEngine</a></li>
  <li><a href="https://github.com/bazelbuild/rules_apple" target="_blank" rel="noopener">Apple (Swift, iOS, macOS, tvOS, visionOS, watchOS)</a></li>
  <li><a href="https://github.com/bazelbuild/rules_dotnet" target="_blank" rel="noopener">C#</a></li>
  <li><a href="https://github.com/bazelbuild/rules_d" target="_blank" rel="noopener">D</a></li>
  <li><a href="https://github.com/bazelbuild/rules_docker" target="_blank" rel="noopener">Docker</a></li>
  <li><a href="https://github.com/bazelbuild/rules_groovy" target="_blank" rel="noopener">Groovy</a></li>
  <li><a href="https://github.com/bazelbuild/rules_go" target="_blank" rel="noopener">Go</a></li>
  <li><a href="https://github.com/bazelbuild/rules_closure" target="_blank" rel="noopener">JavaScript (Closure)</a></li>
  <li><a href="https://github.com/bazelbuild/rules_jsonnet" target="_blank" rel="noopener">Jsonnet</a></li>
  <li><a href="/versions/8.1.0/reference/be/pkg.html">Packaging</a></li>
  <li><a href="https://github.com/bazelbuild/rules_rust" target="_blank" rel="noopener">Rust</a></li>
  <li><a href="https://github.com/bazelbuild/rules_sass" target="_blank" rel="noopener">Sass</a></li>
  <li><a href="https://github.com/bazelbuild/rules_scala" target="_blank" rel="noopener">Scala</a></li>
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