"identifier">defined</span><span class="special">(</span><span class="identifier">HAVE_TTMATH</span><span class="special">)</span>
<span class="preprocessor">#  include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">/</span><span class="identifier">extensions</span><span class="special">/</span><span class="identifier">contrib</span><span class="special">/</span><span class="identifier">