linking with libarm_cortexM3l_math.a ?

Hardware Arduino Due
10

I have seen that in the CMSIS library, those functions exist in radix2 format as well:

http://mazsola.iit.uni-miskolc.hu/DATA/segedletek/arm/cmsis/CMSIS/Documentation/DSP/html/group___radix2___c_f_f_t___c_i_f_f_t.html

But they are not included in the Arduino Due Libraries, why? Is it possible to add them? If it is, will they work with similar performance?

Thank you