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        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - REGRESSION(r225769): Build errors with constexpr std::tie on older gcc"
   href="https://bugs.webkit.org/show_bug.cgi?id=180692">180692</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>REGRESSION(r225769): Build errors with constexpr std::tie on older gcc
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>WebKit
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>WebKit Nightly Build
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>Normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P2
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Layout and Rendering
          </td>
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        <tr>
          <th>Assignee</th>
          <td>webkit-unassigned@lists.webkit.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>Ms2ger@igalia.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>bfulgham@webkit.org, darin@apple.com, dbates@webkit.org, simon.fraser@apple.com, zalan@apple.com
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        <pre>See <<a href="https://build.webkit.org/builders/GTK%20Linux%2064-bit%20Release%20Ubuntu%20LTS%20%28Build%29/builds/8173/steps/compile-webkit/logs/stdio">https://build.webkit.org/builders/GTK%20Linux%2064-bit%20Release%20Ubuntu%20LTS%20%28Build%29/builds/8173/steps/compile-webkit/logs/stdio</a>> for errors like

../../Source/WebCore/platform/graphics/FontSelectionAlgorithm.h: In member function ‘constexpr bool WebCore::FontSelectionRange::operator==(const WebCore::FontSelectionRange&) const’:
../../Source/WebCore/platform/graphics/FontSelectionAlgorithm.h:287:5: error: call to non-constexpr function ‘std::tuple<_Elements& ...> std::tie(_Elements& ...) [with _Elements = {const WebCore::FontSelectionValue, const WebCore::FontSelectionValue}]’
     }
     ^</pre>
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      </p>


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