ENABLE_NE10_IIR_LATTICE_FLOAT_NEON

[SMI37920]

I am intending to use ne10_iir_lattice_float() and I want to be sure to use the neon version on my AM3359 processor. I noticed ENABLE_NE10_IIR_LATTICE_FLOAT_NEON in NE10_dsp.h, and I'm wondering do I need to specify this somewhere or is it automatically set? How can I verify I am using the neon version of the function? I have both cross compiled the library for linux in an X86 VM and compiled it natively on the AM3359, so I would like a way to verify the neon hardware has been detected correctly. (My Eclipse project seems to think ENABLE_NE10_IIR_LATTICE_FLOAT_NEON is not set.)