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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [CMake][Win] EventTargetInterfaces.h are generated twice"
   href="https://bugs.webkit.org/show_bug.cgi?id=177286">177286</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[CMake][Win] EventTargetInterfaces.h are generated twice
          </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>WebCore Misc.
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>webkit-unassigned@lists.webkit.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>Hironori.Fujii@sony.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Some source files are compiled unnecessarily in the incremental build.

The log of WinCairo port clean build:

  <a href="https://gist.github.com/fujii/1a52f7b02ac4e16927b0b34b4b3eb874#file-webkit-win-cairo-clean-build-txt">https://gist.github.com/fujii/1a52f7b02ac4e16927b0b34b4b3eb874#file-webkit-win-cairo-clean-build-txt</a>

The log of WinCairo port null incremental build:

  <a href="https://gist.github.com/fujii/1a52f7b02ac4e16927b0b34b4b3eb874#file-webkit-win-cairo-incremental-build-txt">https://gist.github.com/fujii/1a52f7b02ac4e16927b0b34b4b3eb874#file-webkit-win-cairo-incremental-build-txt</a>

In the first clean bulid log, EventTargetInterfaces.h are generated twice in both WebCoreDerivedSources and WebCore projects.

<span class="quote">> 22>------ Build started: Project: WebCoreDerivedSources, Configuration: Debug x64 ------
> (...)
> 22>  Generating ../../DerivedSources/WebCore/EventTargetInterfaces.h
> (...)
> 32>------ Build started: Project: WebCore (WebCore\WebCore), Configuration: Debug x64 ------
> (...)
> 32>  Generating ../../DerivedSources/WebCore/EventTargetInterfaces.h</span ></pre>
        </div>
      </p>


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