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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 - REGRESSION(r178955): Touching Settings.in doesn't cause JSInternalSettingsGenerated.cpp to be updated on first build"

   href="https://bugs.webkit.org/show_bug.cgi?id=166814">166814</a>

          </td>

        </tr>


        <tr>

          <th>Summary</th>

          <td>REGRESSION(r178955): Touching Settings.in doesn't cause JSInternalSettingsGenerated.cpp to be updated on first build

          </td>

        </tr>


        <tr>

          <th>Classification</th>

          <td>Unclassified

          </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>Bindings

          </td>

        </tr>


        <tr>

          <th>Assignee</th>

          <td>webkit-unassigned&#64;lists.webkit.org

          </td>

        </tr>


        <tr>

          <th>Reporter</th>

          <td>mmaxfield&#64;apple.com

          </td>

        </tr>


        <tr>

          <th>CC</th>

          <td>cdumez&#64;apple.com

          </td>

        </tr></table>

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        <pre>To reproduce on an OpenSource build:


1. Perform a full, clean build

2. Add or remove an item from Settings.in

3. In a terminal:

$ cd ~/Build/Products/Debug/DerivedSources/WebCore

$ export WebCore=&quot;WebCore&quot;

$ export JavaScriptCore_SCRIPTS_DIR=&quot;JavaScriptCorePrivateHeaders&quot;

$ export CC=&quot;`xcrun -find clang`&quot;

$ export GPERF=&quot;`xcrun -find gperf`&quot;

$ export WEBKITADDITIONS_HEADER_SEARCH_PATHS=&quot;${HOME}/Build/Products/Debug/usr/local/include/WebKitAdditions /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/local/include/WebKitAdditions&quot;

$ export MAKEFILE_INCLUDE_FLAGS=$(echo &quot;${WEBKITADDITIONS_HEADER_SEARCH_PATHS}&quot; | perl -e 'print &quot;-I&quot; . join(&quot; -I&quot;, split(&quot; &quot;, &lt;&gt;));')

$ make -n --no-builtin-rules ${MAKEFILE_INCLUDE_FLAGS} -f &quot;WebCore/DerivedSources.make&quot; SDKROOT=&quot;${SDKROOT}&quot;


The &quot;-n&quot; will cause make to only print the commands it would have run. Notice that there is no generate-bindings.pl invocation in the result for InternalSettingsGenerated.idl


However, if you run the make command again (with the -n flag), there is a generate-bindings.pl invocation in the result for InternalSettingsGenerated.idl


If you run these same steps again, but you revert the last part of <a href="https://trac.webkit.org/changeset/178955/trunk/Source/WebCore/DerivedSources.make">https://trac.webkit.org/changeset/178955/trunk/Source/WebCore/DerivedSources.make</a> where make_settings.pl is linked to an .INTERMEDIATE rule, both make invocations list a generate-bindings.pl invocation for InternalSettingsGenerated.idl</pre>

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