library/std/src/sys/pal/wasi/conf.rs - rust - Git at Google

 #[allow(dead_code)]
 pub fn page_size() -> usize {
     unsafe { libc::sysconf(libc::_SC_PAGESIZE) as usize }
 }
	#[allow(dead_code)]
	pub fn page_size() -> usize {
	unsafe { libc::sysconf(libc::_SC_PAGESIZE) as usize }
	}