Function jerasure_make_decoding_matrix 

pub unsafe extern "C" fn jerasure_make_decoding_matrix(
    k: c_int,
    m: c_int,
    w: c_int,
    matrix: *mut c_int,
    erased: *mut c_int,
    decoding_matrix: *mut c_int,
    dm_ids: *mut c_int,
) -> c_int