<html>
    <head>
      <base href="https://bugs.freedesktop.org/" />
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - libwayland: the library should not print anything to stderr"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=73339">73339</a>
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>wayland-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>libwayland: the library should not print anything to stderr
          </td>
        </tr>

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

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

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

        <tr>
          <th>Reporter</th>
          <td>nfxjfg@gmail.com
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Other
          </td>
        </tr>

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

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

        <tr>
          <th>Component</th>
          <td>wayland
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Wayland
          </td>
        </tr></table>
      <p>
        <div>
        <pre>For example, the library prints a message to stderr if the XDG_RUNTIME_DIR
envrionment variable is not set:

<a href="http://cgit.freedesktop.org/wayland/wayland/tree/src/wayland-client.c?id=cd0dccd01e16fa404e03974d30ded3aebdb1c4bc#n636">http://cgit.freedesktop.org/wayland/wayland/tree/src/wayland-client.c?id=cd0dccd01e16fa404e03974d30ded3aebdb1c4bc#n636</a>

There are other cases.

A library should normally never print anything, unless it can be overridden by
setting a message callback. Outputting something, even to stderr, can cause for
terminal programs which want to keep their output clean, especially in case of
non-fatal errors, or for example catch the error message and send it somewhere
else.</pre>
        </div>
      </p>
      <hr>
      <span>You are receiving this mail because:</span>
      
      <ul>
          <li>You are the assignee for the bug.</li>
      </ul>
    </body>
</html>