pub unsafe extern "C" fn cram_compress_block(
fd: *mut cram_fd,
b: *mut cram_block,
metrics: *mut cram_metrics,
method: c_int,
level: c_int,
) -> c_int
pub unsafe extern "C" fn cram_compress_block(
fd: *mut cram_fd,
b: *mut cram_block,
metrics: *mut cram_metrics,
method: c_int,
level: c_int,
) -> c_int