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<section id="cudahostcxx">
<span id="envvar:CUDAHOSTCXX"></span><h1>CUDAHOSTCXX<a class="headerlink" href="#cudahostcxx" title="Permalink to this heading">ΒΆ</a></h1>
<div class="versionadded">
<p><span class="versionmodified added">New in version 3.8.</span></p>
</div>
<p>This is a CMake <a class="reference internal" href="../manual/cmake-language.7.html#cmake-language-environment-variables"><span class="std std-ref">Environment Variable</span></a>. Its initial value is taken from
the calling process environment.</p>
<p>Preferred executable for compiling host code when compiling <code class="docutils literal notranslate"><span class="pre">CUDA</span></code>
language files. Will only be used by CMake on the first configuration to
determine <code class="docutils literal notranslate"><span class="pre">CUDA</span></code> host compiler, after which the value for <code class="docutils literal notranslate"><span class="pre">CUDAHOSTCXX</span></code> is
stored in the cache as <span class="target" id="index-0-variable:CMAKE_CUDA_HOST_COMPILER"></span><a class="reference internal" href="../variable/CMAKE_CUDA_HOST_COMPILER.html#variable:CMAKE_CUDA_HOST_COMPILER" title="CMAKE_CUDA_HOST_COMPILER"><code class="xref cmake cmake-variable docutils literal notranslate"><span class="pre">CMAKE_CUDA_HOST_COMPILER</span></code></a>. This environment
variable is preferred over <span class="target" id="index-1-variable:CMAKE_CUDA_HOST_COMPILER"></span><a class="reference internal" href="../variable/CMAKE_CUDA_HOST_COMPILER.html#variable:CMAKE_CUDA_HOST_COMPILER" title="CMAKE_CUDA_HOST_COMPILER"><code class="xref cmake cmake-variable docutils literal notranslate"><span class="pre">CMAKE_CUDA_HOST_COMPILER</span></code></a>.</p>
<p>This environment variable is primarily meant for use with projects that
enable <code class="docutils literal notranslate"><span class="pre">CUDA</span></code> as a first-class language.</p>
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<p class="admonition-title">Note</p>
<p>Ignored when using <a class="reference internal" href="../manual/cmake-generators.7.html#visual-studio-generators"><span class="std std-ref">Visual Studio Generators</span></a>.</p>
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<div class="versionadded">
<p><span class="versionmodified added">New in version 3.13: </span>The <span class="target" id="index-0-module:FindCUDA"></span><a class="reference internal" href="../module/FindCUDA.html#module:FindCUDA" title="FindCUDA"><code class="xref cmake cmake-module docutils literal notranslate"><span class="pre">FindCUDA</span></code></a>
module will use this variable to initialize its <code class="docutils literal notranslate"><span class="pre">CUDA_HOST_COMPILER</span></code> setting.</p>
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