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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 - error: gl_Position redeclared even with EXT_separate_shader_objects"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=98589">98589</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>error: gl_Position redeclared even with EXT_separate_shader_objects
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Mesa
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>11.2
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>x86-64 (AMD64)
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux (All)
          </td>
        </tr>

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

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Drivers/DRI/i965
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>intel-3d-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>pavel@rojtberg.net
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>intel-3d-bugs@lists.freedesktop.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>according to [1] gl_Position and gl_PointSize must be redeclared prior to use
if
1. shaders are using "#version 300 es"
2. "#extension GL_EXT_separate_shader_objects : enable" is present

however MESA fails with "error: gl_Position redeclared" in this situation.
Note that this works if a core GL context instead of an GLES context is used.

[1]
<a href="https://www.khronos.org/registry/gles/extensions/EXT/EXT_separate_shader_objects.txt">https://www.khronos.org/registry/gles/extensions/EXT/EXT_separate_shader_objects.txt</a></pre>
        </div>
      </p>


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