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

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - undefined reference to glActiveTexture and glBlendFuncSeparate"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=82054">82054</a>
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>cairo-bugs@cairographics.org
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>undefined reference to glActiveTexture and glBlendFuncSeparate
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>cairo-bugs@cairographics.org
          </td>
        </tr>

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

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

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

        <tr>
          <th>Reporter</th>
          <td>daniel@ekpyron.org
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>All
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>gl backend
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>cairo
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=103866" name="attach_103866" title="Patch that solves the issue.">attachment 103866</a> <a href="attachment.cgi?id=103866&action=edit" title="Patch that solves the issue.">[details]</a></span>
Patch that solves the issue.

When compiling cairo with the gl backend enabled on windows with mingw-w64 I
get undefined references to glActiveTexture and glBlendFuncSeparate as the
opengl32 library only exposes OpenGL 1.1 entry points.

I attached a patch that queries the two entry points via the GetProcAddress
mechanism in cairo-gl-dispatcher.c instead. The patch works against
cairo-1.12.16 and the current git version.</pre>
        </div>
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