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                <ol class="chapter"><li class="chapter-item expanded affix "><a href="../intro.html">Introduction</a></li><li class="chapter-item expanded "><a href="../tools/index.html"><strong aria-hidden="true">1.</strong> Tools</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../tools/zsh.html"><strong aria-hidden="true">1.1.</strong> zsh</a></li><li class="chapter-item expanded "><a href="../tools/bash.html"><strong aria-hidden="true">1.2.</strong> bash</a></li><li class="chapter-item expanded "><a href="../tools/fish.html"><strong aria-hidden="true">1.3.</strong> fish</a></li><li class="chapter-item expanded "><a href="../tools/tmux.html"><strong aria-hidden="true">1.4.</strong> tmux</a></li><li class="chapter-item expanded "><a href="../tools/git.html"><strong aria-hidden="true">1.5.</strong> git</a></li><li class="chapter-item expanded "><a href="../tools/awk.html"><strong aria-hidden="true">1.6.</strong> awk</a></li><li class="chapter-item expanded 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                        <h1 id="cmake1"><a class="header" href="#cmake1">cmake(1)</a></h1>
<h2 id="private--public--interface"><a class="header" href="#private--public--interface"><code>PRIVATE</code> / <code>PUBLIC</code> / <code>INTERFACE</code></a></h2>
<p>These modifier control where properties for a given target are visible.</p>
<ul>
<li><code>PRIVATE</code>: Only for the target itself.</li>
<li><code>INTERFACE</code>: Only for anyone linking against the target.</li>
<li><code>PUBLIC</code>: For the target itself and anyone linking against it (effectively
<code>PRIVATE</code> + <code>INTERFACE</code>).</li>
</ul>
<p>The following gives an example for preprocessor definitions specified on a
library target. This behaves in the same way for other properties like for
example include directories.</p>
<pre><code class="language-cmake"># CMakeLists.txt

cmake_minimum_required(VERSION 3.14)
project(moose)

# -- LIBRARY
add_library(liba STATIC liba.cc)
target_compile_definitions(liba PUBLIC DEF_PUBLIC)
target_compile_definitions(liba PRIVATE DEF_PRIVATE)
target_compile_definitions(liba INTERFACE DEF_INTERFACE)

# -- APPLICATION
add_executable(main main.cc)
target_link_libraries(main liba)
</code></pre>
<pre><code class="language-sh">&gt; touch liba.cc; echo &quot;int main() {}&quot; &gt; main.cc
&gt; cmake -B build -S . -G Ninja
&gt; ninja -C build -j1 --verbose
[1/4] /usr/bin/c++ -DDEF_PRIVATE -DDEF_PUBLIC  [..] .../liba.cc
[2/4] [..]
[3/4] /usr/bin/c++ -DDEF_INTERFACE -DDEF_PUBLIC [..] .../main.cc
[4/4] [..]
</code></pre>

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