26</span>&#160;<span class="preprocessor">FFTW_EXTERN void X(export_wisdom_to_file)(FILE *output_file);          \</span></div><div class="line"><a name="l00327"></a><span class="lineno">  327</span>&#160;<span class="preprocessor">FFTW_EXTERN char *X(export_wisdom_to_string)(void);            \</span></div><div class="line"><a name="l00328"></a><span class="lineno">  328</span>&#160;<span class="preprocessor">FFTW_EXTERN void X(export_wisdom)(X(write_char_func) write_char,       \</span></div><div class="l