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    <body><span class="vcard"><a class="email" href="mailto:cgarcia&#64;igalia.com" title="Carlos Garcia Campos &lt;cgarcia&#64;igalia.com&gt;"> <span class="fn">Carlos Garcia Campos</span></a>
</span> changed
              <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [GTK] gobject-introspection on package build with webkit2gtk fails without active X session"
   href="https://bugs.webkit.org/show_bug.cgi?id=163105">bug 163105</a>
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            <th>What</th>
            <th>Removed</th>
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           <td style="text-align:right;">Attachment #291797 Flags</td>
           <td>review?
           </td>
           <td>review+, commit-queue-
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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [GTK] gobject-introspection on package build with webkit2gtk fails without active X session"
   href="https://bugs.webkit.org/show_bug.cgi?id=163105#c7">Comment # 7</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [GTK] gobject-introspection on package build with webkit2gtk fails without active X session"
   href="https://bugs.webkit.org/show_bug.cgi?id=163105">bug 163105</a>
              from <span class="vcard"><a class="email" href="mailto:cgarcia&#64;igalia.com" title="Carlos Garcia Campos &lt;cgarcia&#64;igalia.com&gt;"> <span class="fn">Carlos Garcia Campos</span></a>
</span></b>
        <pre>Comment on <span class=""><a href="attachment.cgi?id=291797&amp;action=diff" name="attach_291797" title="Patch">attachment 291797</a> <a href="attachment.cgi?id=291797&amp;action=edit" title="Patch">[details]</a></span>
Patch

View in context: <a href="https://bugs.webkit.org/attachment.cgi?id=291797&amp;action=review">https://bugs.webkit.org/attachment.cgi?id=291797&amp;action=review</a>

<span class="quote">&gt; Source/WebCore/platform/graphics/x11/PlatformDisplayX11.cpp:78
&gt; -    if (!m_supportsXComposite) {
&gt; +    if (!m_supportsXComposite &amp;&amp; m_display) {</span >

I agree but this will crash in debug builds. m_supportsXComposite is Optional&lt;bool&gt;, if we don't initialize it the .value() below will assert in debug because the value is not engaged. So, simply add an early return before this if so that when m_display is nullptr, the optional value is not even used.

<span class="quote">&gt; Source/WebCore/platform/graphics/x11/PlatformDisplayX11.cpp:87
&gt; -    if (!m_supportsXDamage) {
&gt; +    if (!m_supportsXDamage &amp;&amp; m_display) {</span >

And same here</pre>
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