<p>Tracking here the issue exposed by <a href="https://github.com/linuxmaniac" class="user-mention">@linuxmaniac</a> via PR <a href="https://github.com/kamailio/kamailio/pull/924" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="200411198" data-permission-text="Issue title is private" data-url="https://github.com/kamailio/kamailio/issues/924">#924</a>, as it was merged and then reverted (by <a href="https://github.com/kamailio/kamailio/pull/1248" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="260970451" data-permission-text="Issue title is private" data-url="https://github.com/kamailio/kamailio/issues/1248">#1248</a>), so anyone can be aware of as well as comment/propose solutions for it.</p>
<blockquote>
<p>Add "-fno-strict-aliasing" to compilation flags</p>
<p>Fixes a slew of:<br>
"dereferencing type-punned pointer will break strict-aliasing rules"<br>
warnings from GCC for lines of the form:<br>
Py_INCREF(Py_True);<br>
and<br>
Py_INCREF(Py_False);</p>
<p>due to the cast from PyIntObject* to PyObject*</p>
<p>GCC is technically correct here; see:<br>
<a href="http://www.python.org/dev/peps/pep-3123/">http://www.python.org/dev/peps/pep-3123/</a><br>
though this is unlikely to lead to non-working machine code.</p>
</blockquote>
<p>The initial proposed patch for <code>src/modules/app_python/Makefile</code> is:</p>
<pre><code>
 @@ -22,6 +22,8 @@ ifeq ($(OS), freebsd)
  LIBS+=-pthread
  endif
  
 +# python2 https://www.python.org/dev/peps/pep-3123/
 +DEFS+=-fno-strict-aliasing
  DEFS+=-I${PYTHON_INCDIR}
  DEFS+=-DKAMAILIO_MOD_INTERFACE
</code></pre>

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