roduces incorrect code for the file
<code>reodft11e-r2hc-odd.c</code> unless optimizations are disabled for that file.  
<p>
<code>gcc</code> 2.95 on MacOS X miscompiles AltiVec code (fixed in
later versions).  <code>gcc</code> 3.2.x miscompiles AltiVec permutations, but FFTW has a workaround. 
<code>gcc</code> 4.0.1 on MacOS for Intel crashes when compiling FFTW; a workaround is to
compile one file without optimization: <code>cd kernel; make CFLAGS=&quot; &quot; trig.lo</code>.  
<p>
<code>gcc</code> 4.1.1