* Hey, odd question, but is this something that someone else has had to do when doing embedded and/or CFFI, or am I missing something obvious ?

```rs
#[no_mangle]
pub extern "C" fn __hardfp_cosf(f: f32) -> f32 {
    libm::cosf(f)
}

#[no_mangle]
pub extern "C" fn __hardfp_sinf(f: f32) -> f32 {
    libm::sinf(f)
}

#[no_mangle]
pub extern "C" fn __hardfp_roundf(f: f32) -> f32 {
    libm::roundf(f)
}

#[no_mangle]
pub extern "C" fn __hardfp_sqrtf(f: f32) -> f32 {
    libm::sqrtf(f)
}

#[no_mangle]
pub extern "C" fn __hardfp_powf(f: f32, g: f32) -> f32 {
    libm::powf(f, g)
}

#[no_mangle]
pub extern "C" fn __hardfp_cexpf(f: Complex32) -> Complex32 {
    f.exp()
}

#[no_mangle]
pub extern "C" fn __hardfp_cabsf(f: f32) -> f32 {
    libm::fabsf(f)
}

#[no_mangle]
pub extern "C" fn __hardfp_atanf(f: f32) -> f32 {
    libm::atanf(f)
}

#[no_mangle]
pub extern "C" fn __hardfp_floorf(f: f32) -> f32 {
    libm::floorf(f)
}

#[no_mangle]
pub extern "C" fn __hardfp_log10f(f: f32) -> f32 {
    libm::log10f(f)
}

#[no_mangle]
pub extern "C" fn __hardfp_exp2f(f: f32) -> f32 {
    libm::exp2f(f)
}
```

Not doing this results in undefined symbols