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<h1>3. Package Concepts and Development<a class="headerlink" href="#package-concepts-and-development" title="Permalink to this headline">¶</a></h1>
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<li class="toctree-l1"><a class="reference internal" href="developing-packages.html">3.1. Quickstart</a><ul>
<li class="toctree-l2"><a class="reference internal" href="developing-packages.html#using-cabal-init">3.1.1. Using “cabal init”</a></li>
<li class="toctree-l2"><a class="reference internal" href="developing-packages.html#editing-the-cabal-file">3.1.2. Editing the .cabal file</a></li>
<li class="toctree-l2"><a class="reference internal" href="developing-packages.html#modules-included-in-the-package">3.1.3. Modules included in the package</a></li>
<li class="toctree-l2"><a class="reference internal" href="developing-packages.html#modules-imported-from-other-packages">3.1.4. Modules imported from other packages</a></li>
<li class="toctree-l2"><a class="reference internal" href="developing-packages.html#building-the-package">3.1.5. Building the package</a></li>
<li class="toctree-l2"><a class="reference internal" href="developing-packages.html#next-steps">3.1.6. Next steps</a></li>
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<li class="toctree-l1"><a class="reference internal" href="developing-packages.html#package-concepts">3.2. Package concepts</a><ul>
<li class="toctree-l2"><a class="reference internal" href="developing-packages.html#the-point-of-packages">3.2.1. The point of packages</a></li>
<li class="toctree-l2"><a class="reference internal" href="developing-packages.html#package-names-and-versions">3.2.2. Package names and versions</a></li>
<li class="toctree-l2"><a class="reference internal" href="developing-packages.html#kinds-of-package-cabal-vs-ghc-vs-system">3.2.3. Kinds of package: Cabal vs GHC vs system</a></li>
<li class="toctree-l2"><a class="reference internal" href="developing-packages.html#unit-of-distribution">3.2.4. Unit of distribution</a></li>
<li class="toctree-l2"><a class="reference internal" href="developing-packages.html#explicit-dependencies-and-automatic-package-management">3.2.5. Explicit dependencies and automatic package management</a></li>
<li class="toctree-l2"><a class="reference internal" href="developing-packages.html#portability">3.2.6. Portability</a></li>
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<li class="toctree-l1"><a class="reference internal" href="developing-packages.html#developing-packages">3.3. Developing packages</a><ul>
<li class="toctree-l2"><a class="reference internal" href="developing-packages.html#creating-a-package">3.3.1. Creating a package</a></li>
<li class="toctree-l2"><a class="reference internal" href="developing-packages.html#package-descriptions">3.3.2. Package descriptions</a></li>
<li class="toctree-l2"><a class="reference internal" href="developing-packages.html#custom-setup-scripts">3.3.3. Custom setup scripts</a></li>
<li class="toctree-l2"><a class="reference internal" href="developing-packages.html#autogenerated-modules">3.3.4. Autogenerated modules</a></li>
<li class="toctree-l2"><a class="reference internal" href="developing-packages.html#accessing-data-files-from-package-code">3.3.5. Accessing data files from package code</a></li>
<li class="toctree-l2"><a class="reference internal" href="developing-packages.html#system-dependent-parameters">3.3.6. System-dependent parameters</a></li>
<li class="toctree-l2"><a class="reference internal" href="developing-packages.html#conditional-compilation">3.3.7. Conditional compilation</a></li>
<li class="toctree-l2"><a class="reference internal" href="developing-packages.html#more-complex-packages">3.3.8. More complex packages</a></li>
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