float128 (quad precision) is a gcc extension on i386, x86_64, and ia64</span></div><div class="line"><a name="l00363"></a><span class="lineno">  363</span>&#160;<span class="comment">   for gcc &gt;= 4.6 (compiled in FFTW with --enable-quad-precision) */</span></div><div class="line"><a name="l00364"></a><span class="lineno">  364</span>&#160;<span class="preprocessor">#if (__GNUC__ &gt; 4 || (__GNUC__ == 4 &amp;&amp; __GNUC_MINOR__ &gt;= 6)) \</span></div><div class="line"><a name="l00365"></a><span class=