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Native-environments.html
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<!DOCTYPE html>
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<title>Persistent native environments</title>
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<h1 id="persistent-native-environments">Persistent native environments</h1>
<p>New in 0.49.0</p>
<p>Meson has <a href="Cross-compilation.html">cross files for describing cross compilation
environments</a>, for describing native
environments it has equivalent "native files".</p>
<p>Natives describe the <em>build machine</em>, and can be used to override
properties of non-cross builds, as well as properties that are marked
as "native" in a cross build.</p>
<p>There are a couple of reasons you might want to use a native file to
keep a persistent environment:</p>
<ul>
<li>To build with a non-default native tool chain (such as clang instead of gcc)</li>
<li>To use a non-default version of another binary, such as yacc, or llvm-config</li>
</ul>
<h2 id="using-a-native-file">Using a native file</h2>
<p>During the <code>setup</code> phase, use the native file as such:</p>
<pre><code class="language-sh">meson setup --native-file my-native-file.ini builddir/
</code></pre>
<h2 id="changing-native-file-settings">Changing native file settings</h2>
<p>All of the rules about cross files and changed settings apply to native files
as well, see <a href="Cross-compilation.html#changing-cross-file-settings">here</a></p>
<h2 id="defining-the-environment">Defining the environment</h2>
<p>See the <a href="Machine-files.html">config-files section</a>, for options shared by cross
and native files.</p>
<h2 id="native-file-locations">Native file locations</h2>
<p>Like cross files, native files may be installed to user or system wide
locations, defined as:</p>
<ul>
<li>$XDG_DATA_DIRS/meson/native
(/usr/local/share/meson/native:/usr/share/meson/native if $XDG_DATA_DIRS is
undefined)</li>
<li>$XDG_DATA_HOME/meson/native ($HOME/.local/share/meson/native if
$XDG_DATA_HOME is undefined)</li>
</ul>
<p>The order of locations tried is as follows:</p>
<ul>
<li>A file relative to the local dir</li>
<li>The user local location</li>
<li>The system wide locations in order</li>
</ul>
<p>These files are not intended to be shipped by distributions, unless
they are specifically for distribution packaging, they are mainly
intended for developers.</p>
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