#[cfg(not(any(
feature = "pke",
feature = "kem"
)))]
compile_error!(
"You need to specify at least one cryptographic protocol you intend to use. \
Available options:\n\
pke, kem\n\
e.g.\n\
round5 = { version = \"0.1.1\", features = [\"kem\"] }"
);
fn main() {
}