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<span class="target" id="manual:cmake-configure-log(7)"></span><section id="cmake-configure-log-7">
<h1><a class="toc-backref" href="#id4" role="doc-backlink">cmake-configure-log(7)</a><a class="headerlink" href="#cmake-configure-log-7" title="Permalink to this heading">¶</a></h1>
<div class="versionadded">
<p><span class="versionmodified added">New in version 3.26.</span></p>
</div>
<nav class="contents" id="contents">
<p class="topic-title">Contents</p>
<ul class="simple">
<li><p><a class="reference internal" href="#cmake-configure-log-7" id="id4">cmake-configure-log(7)</a></p>
<ul>
<li><p><a class="reference internal" href="#introduction" id="id5">Introduction</a></p></li>
<li><p><a class="reference internal" href="#log-structure" id="id6">Log Structure</a></p>
<ul>
<li><p><a class="reference internal" href="#log-versioning" id="id7">Log Versioning</a></p></li>
<li><p><a class="reference internal" href="#text-block-encoding" id="id8">Text Block Encoding</a></p></li>
</ul>
</li>
<li><p><a class="reference internal" href="#event-kinds" id="id9">Event Kinds</a></p>
<ul>
<li><p><a class="reference internal" href="#event-kind-message" id="id10">Event Kind <code class="docutils literal notranslate"><span class="pre">message</span></code></a></p>
<ul>
<li><p><a class="reference internal" href="#message-v1-event" id="id11"><code class="docutils literal notranslate"><span class="pre">message-v1</span></code> Event</a></p></li>
</ul>
</li>
<li><p><a class="reference internal" href="#event-kind-try-compile" id="id12">Event Kind <code class="docutils literal notranslate"><span class="pre">try_compile</span></code></a></p>
<ul>
<li><p><a class="reference internal" href="#try-compile-v1-event" id="id13"><code class="docutils literal notranslate"><span class="pre">try_compile-v1</span></code> Event</a></p></li>
</ul>
</li>
<li><p><a class="reference internal" href="#event-kind-try-run" id="id14">Event Kind <code class="docutils literal notranslate"><span class="pre">try_run</span></code></a></p>
<ul>
<li><p><a class="reference internal" href="#try-run-v1-event" id="id15"><code class="docutils literal notranslate"><span class="pre">try_run-v1</span></code> Event</a></p></li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</nav>
<section id="introduction">
<h2><a class="toc-backref" href="#id5" role="doc-backlink">Introduction</a><a class="headerlink" href="#introduction" title="Permalink to this heading">¶</a></h2>
<p>CMake writes a running log, known as the <em>configure log</em>,
of certain events that occur during the Configure step.
The configure log does <em>not</em> contain a log of all output, errors,
or messages printed while configuring a project. It is a log of
detailed information about specific events, such as toolchain inspection
by <span class="target" id="index-0-command:try_compile"></span><a class="reference internal" href="../command/try_compile.html#command:try_compile" title="try_compile"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">try_compile()</span></code></a>, meant for use in debugging the configuration
of a build tree.</p>
<p>For human use, this version of CMake writes the configure log to the file:</p>
<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>${CMAKE_BINARY_DIR}/CMakeFiles/CMakeConfigureLog.yaml
</pre></div>
</div>
<p>However, the <em>location and name of the log file may change</em> in future
versions of CMake. Tools that read the configure log should get its
location using a <a class="reference internal" href="cmake-file-api.7.html#file-api-configurelog"><span class="std std-ref">configureLog</span></a> query to
the <span class="target" id="index-0-manual:cmake-file-api(7)"></span><a class="reference internal" href="cmake-file-api.7.html#manual:cmake-file-api(7)" title="cmake-file-api(7)"><code class="xref cmake cmake-manual docutils literal notranslate"><span class="pre">cmake-file-api(7)</span></code></a>.
See the <a class="reference internal" href="#log-versioning">Log Versioning</a> section below for details.</p>
</section>
<section id="log-structure">
<h2><a class="toc-backref" href="#id6" role="doc-backlink">Log Structure</a><a class="headerlink" href="#log-structure" title="Permalink to this heading">¶</a></h2>
<p>The configure log is designed to be both machine- and human-readable.</p>
<p>The log file is a YAML document stream containing zero or more YAML
documents separated by document markers. Each document begins
with a <code class="docutils literal notranslate"><span class="pre">---</span></code> document marker line, contains a single YAML mapping
that logs events from one CMake "configure" step, and, if the configure
step finished normally, ends with a <code class="docutils literal notranslate"><span class="pre">...</span></code> document marker line:</p>
<div class="highlight-yaml notranslate"><div class="highlight"><pre><span></span><span class="nn">---</span><span class="w"></span>
<span class="nt">events</span><span class="p">:</span><span class="w"></span>
<span class="w"> </span><span class="p p-Indicator">-</span><span class="w"></span>
<span class="w"> </span><span class="nt">kind</span><span class="p">:</span><span class="w"> </span><span class="s">"try_compile-v1"</span><span class="w"></span>
<span class="w"> </span><span class="c1"># (other fields omitted)</span><span class="w"></span>
<span class="w"> </span><span class="p p-Indicator">-</span><span class="w"></span>
<span class="w"> </span><span class="nt">kind</span><span class="p">:</span><span class="w"> </span><span class="s">"try_compile-v1"</span><span class="w"></span>
<span class="w"> </span><span class="c1"># (other fields omitted)</span><span class="w"></span>
<span class="nn">...</span><span class="w"></span>
</pre></div>
</div>
<p>A new document is appended to the log every time CMake configures
the build tree and logs new events.</p>
<p>The keys of the each document root mapping are:</p>
<dl class="simple">
<dt><code class="docutils literal notranslate"><span class="pre">events</span></code></dt><dd><p>A YAML block sequence of nodes corresponding to events logged during
one CMake "configure" step. Each event is a YAML node containing one
of the <a class="reference internal" href="#event-kinds">Event Kinds</a> documented below.</p>
</dd>
</dl>
<section id="log-versioning">
<h3><a class="toc-backref" href="#id7" role="doc-backlink">Log Versioning</a><a class="headerlink" href="#log-versioning" title="Permalink to this heading">¶</a></h3>
<p>Each of the <a class="reference internal" href="#event-kinds">Event Kinds</a> is versioned independently. The set of
keys an event's log entry provides is specific to its major version.
When an event is logged, the latest version of its event kind that is
known to the running version of CMake is always written to the log.</p>
<p>Tools reading the configure log must ignore event kinds and versions
they do not understand:</p>
<ul class="simple">
<li><p>A future version of CMake may introduce a new event kind or version.</p></li>
<li><p>If an existing build tree is re-configured with a different version of
CMake, the log may contain different versions of the same event kind.</p></li>
<li><p>If <span class="target" id="index-1-manual:cmake-file-api(7)"></span><a class="reference internal" href="cmake-file-api.7.html#manual:cmake-file-api(7)" title="cmake-file-api(7)"><code class="xref cmake cmake-manual docutils literal notranslate"><span class="pre">cmake-file-api(7)</span></code></a> queries request one or more
<a class="reference internal" href="cmake-file-api.7.html#file-api-configurelog"><span class="std std-ref">configureLog</span></a> object versions,
the log may contain multiple entries for the same event, each
with a different version of its event kind.</p></li>
</ul>
<p>IDEs should write a <span class="target" id="index-2-manual:cmake-file-api(7)"></span><a class="reference internal" href="cmake-file-api.7.html#manual:cmake-file-api(7)" title="cmake-file-api(7)"><code class="xref cmake cmake-manual docutils literal notranslate"><span class="pre">cmake-file-api(7)</span></code></a> query requesting a
specific <a class="reference internal" href="cmake-file-api.7.html#file-api-configurelog"><span class="std std-ref">configureLog</span></a> object version,
before running CMake, and then read the configure log only as described
by the file-api reply.</p>
</section>
<section id="text-block-encoding">
<h3><a class="toc-backref" href="#id8" role="doc-backlink">Text Block Encoding</a><a class="headerlink" href="#text-block-encoding" title="Permalink to this heading">¶</a></h3>
<p>In order to make the log human-readable, text blocks are always
represented using YAML literal block scalars (<code class="docutils literal notranslate"><span class="pre">|</span></code>).
Since literal block scalars do not support escaping, backslashes
and non-printable characters are encoded at the application layer:</p>
<ul class="simple">
<li><p><code class="docutils literal notranslate"><span class="pre">\\</span></code> encodes a backslash.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">\xXX</span></code> encodes a byte using two hexadecimal digits, <code class="docutils literal notranslate"><span class="pre">XX</span></code>.</p></li>
</ul>
</section>
</section>
<section id="event-kinds">
<span id="configure-log-event-kinds"></span><h2><a class="toc-backref" href="#id9" role="doc-backlink">Event Kinds</a><a class="headerlink" href="#event-kinds" title="Permalink to this heading">¶</a></h2>
<p>Every event kind is represented by a YAML mapping of the form:</p>
<div class="highlight-yaml notranslate"><div class="highlight"><pre><span></span><span class="nt">kind</span><span class="p">:</span><span class="w"> </span><span class="s">"<kind>-v<major>"</span><span class="w"></span>
<span class="nt">backtrace</span><span class="p">:</span><span class="w"></span>
<span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="s">"<file>:<line></span><span class="nv"> </span><span class="s">(<function>)"</span><span class="w"></span>
<span class="nt">checks</span><span class="p">:</span><span class="w"></span>
<span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="s">"Checking</span><span class="nv"> </span><span class="s">for</span><span class="nv"> </span><span class="s">something"</span><span class="w"></span>
<span class="c1">#...event-specific keys...</span><span class="w"></span>
</pre></div>
</div>
<p>The keys common to all events are:</p>
<dl class="simple">
<dt><code class="docutils literal notranslate"><span class="pre">kind</span></code></dt><dd><p>A string identifying the event kind and major version.</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">backtrace</span></code></dt><dd><p>A YAML block sequence reporting the call stack of CMake source
locations at which the event occurred, from most-recent to
least-recent. Each node is a string specifying one location
formatted as <code class="docutils literal notranslate"><span class="pre"><file>:<line></span> <span class="pre">(<function>)</span></code>.</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">checks</span></code></dt><dd><p>An optional key that is present when the event occurred with
at least one pending <span class="target" id="index-0-command:message"></span><a class="reference internal" href="../command/message.html#command:message" title="message"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">message(CHECK_START)</span></code></a>. Its value
is a YAML block sequence reporting the stack of pending checks,
from most-recent to least-recent. Each node is a string containing
a pending check message.</p>
</dd>
</dl>
<p>Additional mapping keys are specific to each (versioned) event kind,
described below.</p>
<section id="event-kind-message">
<span id="message-configure-log-event"></span><h3><a class="toc-backref" href="#id10" role="doc-backlink">Event Kind <code class="docutils literal notranslate"><span class="pre">message</span></code></a><a class="headerlink" href="#event-kind-message" title="Permalink to this heading">¶</a></h3>
<p>The <span class="target" id="index-1-command:message"></span><a class="reference internal" href="../command/message.html#command:message" title="message"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">message(CONFIGURE_LOG)</span></code></a> command logs <code class="docutils literal notranslate"><span class="pre">message</span></code> events.</p>
<p>There is only one <code class="docutils literal notranslate"><span class="pre">message</span></code> event major version, version 1.</p>
<section id="message-v1-event">
<span id="id1"></span><h4><a class="toc-backref" href="#id11" role="doc-backlink"><code class="docutils literal notranslate"><span class="pre">message-v1</span></code> Event</a><a class="headerlink" href="#message-v1-event" title="Permalink to this heading">¶</a></h4>
<p>A <code class="docutils literal notranslate"><span class="pre">message-v1</span></code> event is a YAML mapping:</p>
<div class="highlight-yaml notranslate"><div class="highlight"><pre><span></span><span class="nt">kind</span><span class="p">:</span><span class="w"> </span><span class="s">"message-v1"</span><span class="w"></span>
<span class="nt">backtrace</span><span class="p">:</span><span class="w"></span>
<span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="s">"CMakeLists.txt:123</span><span class="nv"> </span><span class="s">(message)"</span><span class="w"></span>
<span class="nt">checks</span><span class="p">:</span><span class="w"></span>
<span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="s">"Checking</span><span class="nv"> </span><span class="s">for</span><span class="nv"> </span><span class="s">something"</span><span class="w"></span>
<span class="nt">message</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">|</span><span class="w"></span>
<span class="w"> </span><span class="no"># ...</span><span class="w"></span>
</pre></div>
</div>
<p>The keys specific to <code class="docutils literal notranslate"><span class="pre">message-v1</span></code> mappings are:</p>
<dl class="simple">
<dt><code class="docutils literal notranslate"><span class="pre">message</span></code></dt><dd><p>A YAML literal block scalar containing the message text,
represented using our <a class="reference internal" href="#text-block-encoding">Text Block Encoding</a>.</p>
</dd>
</dl>
</section>
</section>
<section id="event-kind-try-compile">
<span id="try-compile-configure-log-event"></span><h3><a class="toc-backref" href="#id12" role="doc-backlink">Event Kind <code class="docutils literal notranslate"><span class="pre">try_compile</span></code></a><a class="headerlink" href="#event-kind-try-compile" title="Permalink to this heading">¶</a></h3>
<p>The <span class="target" id="index-1-command:try_compile"></span><a class="reference internal" href="../command/try_compile.html#command:try_compile" title="try_compile"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">try_compile()</span></code></a> command logs <code class="docutils literal notranslate"><span class="pre">try_compile</span></code> events.</p>
<p>There is only one <code class="docutils literal notranslate"><span class="pre">try_compile</span></code> event major version, version 1.</p>
<section id="try-compile-v1-event">
<span id="id2"></span><h4><a class="toc-backref" href="#id13" role="doc-backlink"><code class="docutils literal notranslate"><span class="pre">try_compile-v1</span></code> Event</a><a class="headerlink" href="#try-compile-v1-event" title="Permalink to this heading">¶</a></h4>
<p>A <code class="docutils literal notranslate"><span class="pre">try_compile-v1</span></code> event is a YAML mapping:</p>
<div class="highlight-yaml notranslate"><div class="highlight"><pre><span></span><span class="nt">kind</span><span class="p">:</span><span class="w"> </span><span class="s">"try_compile-v1"</span><span class="w"></span>
<span class="nt">backtrace</span><span class="p">:</span><span class="w"></span>
<span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="s">"CMakeLists.txt:123</span><span class="nv"> </span><span class="s">(try_compile)"</span><span class="w"></span>
<span class="nt">checks</span><span class="p">:</span><span class="w"></span>
<span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="s">"Checking</span><span class="nv"> </span><span class="s">for</span><span class="nv"> </span><span class="s">something"</span><span class="w"></span>
<span class="nt">description</span><span class="p">:</span><span class="w"> </span><span class="s">"Explicit</span><span class="nv"> </span><span class="s">LOG_DESCRIPTION"</span><span class="w"></span>
<span class="nt">directories</span><span class="p">:</span><span class="w"></span>
<span class="w"> </span><span class="nt">source</span><span class="p">:</span><span class="w"> </span><span class="s">"/path/to/.../TryCompile-01234"</span><span class="w"></span>
<span class="w"> </span><span class="nt">binary</span><span class="p">:</span><span class="w"> </span><span class="s">"/path/to/.../TryCompile-01234"</span><span class="w"></span>
<span class="nt">cmakeVariables</span><span class="p">:</span><span class="w"></span>
<span class="w"> </span><span class="nt">SOME_VARIABLE</span><span class="p">:</span><span class="w"> </span><span class="s">"Some</span><span class="nv"> </span><span class="s">Value"</span><span class="w"></span>
<span class="nt">buildResult</span><span class="p">:</span><span class="w"></span>
<span class="w"> </span><span class="nt">variable</span><span class="p">:</span><span class="w"> </span><span class="s">"COMPILE_RESULT"</span><span class="w"></span>
<span class="w"> </span><span class="nt">cached</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">true</span><span class="w"></span>
<span class="w"> </span><span class="nt">stdout</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">|</span><span class="w"></span>
<span class="w"> </span><span class="no"># ...</span><span class="w"></span>
<span class="w"> </span><span class="nt">exitCode</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">0</span><span class="w"></span>
</pre></div>
</div>
<p>The keys specific to <code class="docutils literal notranslate"><span class="pre">try_compile-v1</span></code> mappings are:</p>
<dl>
<dt><code class="docutils literal notranslate"><span class="pre">description</span></code></dt><dd><p>An optional key that is present when the <code class="docutils literal notranslate"><span class="pre">LOG_DESCRIPTION</span> <span class="pre"><text></span></code> option
was used. Its value is a string containing the description <code class="docutils literal notranslate"><span class="pre"><text></span></code>.</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">directories</span></code></dt><dd><p>A mapping describing the directories associated with the
compilation attempt. It has the following keys:</p>
<dl class="simple">
<dt><code class="docutils literal notranslate"><span class="pre">source</span></code></dt><dd><p>String specifying the source directory of the
<span class="target" id="index-2-command:try_compile"></span><a class="reference internal" href="../command/try_compile.html#command:try_compile" title="try_compile"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">try_compile()</span></code></a> project.</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">binary</span></code></dt><dd><p>String specifying the binary directory of the
<span class="target" id="index-3-command:try_compile"></span><a class="reference internal" href="../command/try_compile.html#command:try_compile" title="try_compile"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">try_compile()</span></code></a> project.
For non-project invocations, this is often the same as
the source directory.</p>
</dd>
</dl>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">cmakeVariables</span></code></dt><dd><p>An optional key that is present when CMake propagates variables
into the test project, either automatically or due to the
<span class="target" id="index-0-variable:CMAKE_TRY_COMPILE_PLATFORM_VARIABLES"></span><a class="reference internal" href="../variable/CMAKE_TRY_COMPILE_PLATFORM_VARIABLES.html#variable:CMAKE_TRY_COMPILE_PLATFORM_VARIABLES" title="CMAKE_TRY_COMPILE_PLATFORM_VARIABLES"><code class="xref cmake cmake-variable docutils literal notranslate"><span class="pre">CMAKE_TRY_COMPILE_PLATFORM_VARIABLES</span></code></a> variable.
Its value is a mapping from variable names to their values.</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">buildResult</span></code></dt><dd><p>A mapping describing the result of compiling the test code.
It has the following keys:</p>
<dl class="simple">
<dt><code class="docutils literal notranslate"><span class="pre">variable</span></code></dt><dd><p>A string specifying the name of the CMake variable
storing the result of trying to build the test project.</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">cached</span></code></dt><dd><p>A boolean indicating whether the above result <code class="docutils literal notranslate"><span class="pre">variable</span></code>
is stored in the CMake cache.</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">stdout</span></code></dt><dd><p>A YAML literal block scalar containing the output from building
the test project, represented using our <a class="reference internal" href="#text-block-encoding">Text Block Encoding</a>.
This contains build output from both stdout and stderr.</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">exitCode</span></code></dt><dd><p>An integer specifying the build tool exit code from trying
to build the test project.</p>
</dd>
</dl>
</dd>
</dl>
</section>
</section>
<section id="event-kind-try-run">
<span id="try-run-configure-log-event"></span><h3><a class="toc-backref" href="#id14" role="doc-backlink">Event Kind <code class="docutils literal notranslate"><span class="pre">try_run</span></code></a><a class="headerlink" href="#event-kind-try-run" title="Permalink to this heading">¶</a></h3>
<p>The <span class="target" id="index-0-command:try_run"></span><a class="reference internal" href="../command/try_run.html#command:try_run" title="try_run"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">try_run()</span></code></a> command logs <code class="docutils literal notranslate"><span class="pre">try_run</span></code> events.</p>
<p>There is only one <code class="docutils literal notranslate"><span class="pre">try_run</span></code> event major version, version 1.</p>
<section id="try-run-v1-event">
<span id="id3"></span><h4><a class="toc-backref" href="#id15" role="doc-backlink"><code class="docutils literal notranslate"><span class="pre">try_run-v1</span></code> Event</a><a class="headerlink" href="#try-run-v1-event" title="Permalink to this heading">¶</a></h4>
<p>A <code class="docutils literal notranslate"><span class="pre">try_run-v1</span></code> event is a YAML mapping:</p>
<div class="highlight-yaml notranslate"><div class="highlight"><pre><span></span><span class="nt">kind</span><span class="p">:</span><span class="w"> </span><span class="s">"try_run-v1"</span><span class="w"></span>
<span class="nt">backtrace</span><span class="p">:</span><span class="w"></span>
<span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="s">"CMakeLists.txt:456</span><span class="nv"> </span><span class="s">(try_run)"</span><span class="w"></span>
<span class="nt">checks</span><span class="p">:</span><span class="w"></span>
<span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="s">"Checking</span><span class="nv"> </span><span class="s">for</span><span class="nv"> </span><span class="s">something"</span><span class="w"></span>
<span class="nt">description</span><span class="p">:</span><span class="w"> </span><span class="s">"Explicit</span><span class="nv"> </span><span class="s">LOG_DESCRIPTION"</span><span class="w"></span>
<span class="nt">directories</span><span class="p">:</span><span class="w"></span>
<span class="w"> </span><span class="nt">source</span><span class="p">:</span><span class="w"> </span><span class="s">"/path/to/.../TryCompile-56789"</span><span class="w"></span>
<span class="w"> </span><span class="nt">binary</span><span class="p">:</span><span class="w"> </span><span class="s">"/path/to/.../TryCompile-56789"</span><span class="w"></span>
<span class="nt">buildResult</span><span class="p">:</span><span class="w"></span>
<span class="w"> </span><span class="nt">variable</span><span class="p">:</span><span class="w"> </span><span class="s">"COMPILE_RESULT"</span><span class="w"></span>
<span class="w"> </span><span class="nt">cached</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">true</span><span class="w"></span>
<span class="w"> </span><span class="nt">stdout</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">|</span><span class="w"></span>
<span class="w"> </span><span class="no"># ...</span><span class="w"></span>
<span class="w"> </span><span class="nt">exitCode</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">0</span><span class="w"></span>
<span class="nt">runResult</span><span class="p">:</span><span class="w"></span>
<span class="w"> </span><span class="nt">variable</span><span class="p">:</span><span class="w"> </span><span class="s">"RUN_RESULT"</span><span class="w"></span>
<span class="w"> </span><span class="nt">cached</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">true</span><span class="w"></span>
<span class="w"> </span><span class="nt">stdout</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">|</span><span class="w"></span>
<span class="w"> </span><span class="no"># ...</span><span class="w"></span>
<span class="w"> </span><span class="nt">stderr</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">|</span><span class="w"></span>
<span class="w"> </span><span class="no"># ...</span><span class="w"></span>
<span class="w"> </span><span class="nt">exitCode</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">0</span><span class="w"></span>
</pre></div>
</div>
<p>The keys specific to <code class="docutils literal notranslate"><span class="pre">try_run-v1</span></code> mappings include those
documented by the <a class="reference internal" href="#try-compile-v1-event">try_compile-v1 event</a>, plus:</p>
<dl>
<dt><code class="docutils literal notranslate"><span class="pre">runResult</span></code></dt><dd><p>A mapping describing the result of running the test code.
It has the following keys:</p>
<dl>
<dt><code class="docutils literal notranslate"><span class="pre">variable</span></code></dt><dd><p>A string specifying the name of the CMake variable
storing the result of trying to run the test executable.</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">cached</span></code></dt><dd><p>A boolean indicating whether the above result <code class="docutils literal notranslate"><span class="pre">variable</span></code>
is stored in the CMake cache.</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">stdout</span></code></dt><dd><p>An optional key that is present when the test project built successfully.
Its value is a YAML literal block scalar containing output from running
the test executable, represented using our <a class="reference internal" href="#text-block-encoding">Text Block Encoding</a>.</p>
<p>If <code class="docutils literal notranslate"><span class="pre">RUN_OUTPUT_VARIABLE</span></code> was used, stdout and stderr are captured
together, so this will contain both. Otherwise, this will contain
only the stdout output.</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">stderr</span></code></dt><dd><p>An optional key that is present when the test project built successfully
and the <code class="docutils literal notranslate"><span class="pre">RUN_OUTPUT_VARIABLE</span></code> option was not used.
Its value is a YAML literal block scalar containing output from running
the test executable, represented using our <a class="reference internal" href="#text-block-encoding">Text Block Encoding</a>.</p>
<p>If <code class="docutils literal notranslate"><span class="pre">RUN_OUTPUT_VARIABLE</span></code> was used, stdout and stderr are captured
together in the <code class="docutils literal notranslate"><span class="pre">stdout</span></code> key, and this key will not be present.
Otherwise, this will contain the stderr output.</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">exitCode</span></code></dt><dd><p>An optional key that is present when the test project built successfully.
Its value is an integer specifying the exit code, or a string containing
an error message, from trying to run the test executable.</p>
</dd>
</dl>
</dd>
</dl>
</section>
</section>
</section>
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<h3><a href="../index.html">Table of Contents</a></h3>
<ul>
<li><a class="reference internal" href="#">cmake-configure-log(7)</a><ul>
<li><a class="reference internal" href="#introduction">Introduction</a></li>
<li><a class="reference internal" href="#log-structure">Log Structure</a><ul>
<li><a class="reference internal" href="#log-versioning">Log Versioning</a></li>
<li><a class="reference internal" href="#text-block-encoding">Text Block Encoding</a></li>
</ul>
</li>
<li><a class="reference internal" href="#event-kinds">Event Kinds</a><ul>
<li><a class="reference internal" href="#event-kind-message">Event Kind <code class="docutils literal notranslate"><span class="pre">message</span></code></a><ul>
<li><a class="reference internal" href="#message-v1-event"><code class="docutils literal notranslate"><span class="pre">message-v1</span></code> Event</a></li>
</ul>
</li>
<li><a class="reference internal" href="#event-kind-try-compile">Event Kind <code class="docutils literal notranslate"><span class="pre">try_compile</span></code></a><ul>
<li><a class="reference internal" href="#try-compile-v1-event"><code class="docutils literal notranslate"><span class="pre">try_compile-v1</span></code> Event</a></li>
</ul>
</li>
<li><a class="reference internal" href="#event-kind-try-run">Event Kind <code class="docutils literal notranslate"><span class="pre">try_run</span></code></a><ul>
<li><a class="reference internal" href="#try-run-v1-event"><code class="docutils literal notranslate"><span class="pre">try_run-v1</span></code> Event</a></li>
</ul>
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