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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 - Hide private symbols in libnfnetlink"
   href="https://bugzilla.netfilter.org/show_bug.cgi?id=1251">1251</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Hide private symbols in libnfnetlink
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>libnfnetlink
          </td>
        </tr>

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

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

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

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

        <tr>
          <th>Severity</th>
          <td>enhancement
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P5
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>libnfnetlink
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>netfilter-buglog@lists.netfilter.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>tetra2005@gmail.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=536" name="attach_536" title="patch">attachment 536</a> <a href="attachment.cgi?id=536&action=edit" title="patch">[details]</a></span>
patch

I've recently tried applying -fvisibility=hidden to libnfnetlink
(draft patch attached) and was able to remove several (supposedly
private) symbols from library interface:
  nfnl_set_sequence_tracking
  nfnl_unset_sequence_tracking
  rtnl_close
  rtnl_dump_type
  rtnl_handler_register
  rtnl_handler_unregister
  rtnl_open
  rtnl_parse_rtattr
  rtnl_receive
  rtnl_receive_multi

Would something like this make sense for trunk?</pre>
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