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        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - 'WebKitSystemInterface.h' file not found building WebKitLegacy for iOS simulator"
   href="https://bugs.webkit.org/show_bug.cgi?id=155838">155838</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>'WebKitSystemInterface.h' file not found building WebKitLegacy for iOS simulator
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

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

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

        <tr>
          <th>Hardware</th>
          <td>Macintosh
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>OS X 10.11
          </td>
        </tr>

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

        <tr>
          <th>Severity</th>
          <td>Blocker
          </td>
        </tr>

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

        <tr>
          <th>Component</th>
          <td>Tools / Tests
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>webkit-unassigned&#64;lists.webkit.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>hofione&#64;gmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>lforschler&#64;apple.com
          </td>
        </tr></table>
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        <pre>the problem similar to this

<a href="http://stackoverflow.com/questions/22019412/build-webkit-error-on-mac-os-x-10-9-webkitsysteminterface-h-file-not-found">http://stackoverflow.com/questions/22019412/build-webkit-error-on-mac-os-x-10-9-webkitsysteminterface-h-file-not-found</a>

building WebKitLegacy target for iOS simulator first got a compile time error

&lt;webkit_root&gt;/Source/WebKit/ios/WebCoreSupport/WebChromeClientIOS.mm:38:9: fatal error: 'WebKitSystemInterface.h' file not found

than after that resolved got a linker error during link time of WebKitLegacy

ld: library not found for -lWebKitSystemInterfaceIOSSimulator9.2


My case could be resolved by 2 steps

1. copied &quot;&lt;webkit_root&gt;/WebKitLibraries/--llvm/usr&quot; over to &quot;&lt;webkit_root&gt;/WebKitBuild/&lt;Configuration&gt;/&quot;
2. copied &quot;&lt;webkit_root&gt;/WebKitLibraries/libWebKit&quot;* over to &quot;&lt;webkit_root&gt;/WebKitBuild/&lt;Configuration&gt;/&quot;


the build made from the 'snapshot of the WebKit source tree' <a href="http://nightly.webkit.org/files/WebKit-SVN-source.tar.bz2">http://nightly.webkit.org/files/WebKit-SVN-source.tar.bz2</a> was available today (marc. 24 2016)
using Xcode 7.2.1 final on osx 10.11.4 final
I've been building from Xcode using the 'All Source' scheme for 9.2 iOS simulator</pre>
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