Macro check_rust_against_sys_decompress

macro_rules! check_rust_against_sys_decompress {
    ($compressed: expr) => { ... };
    ($sys_decompress: path; $compressed: expr) => { ... };
    ($compressed: expr, $level: expr) => { ... };
    ($sys_decompress: path; $compressed: expr, $level: expr) => { ... };
}