s/usize/libc::size_t as suggested by Philipp Matthias Schäfer

Author: asomers

src/sys/socket/ffi.rs

@@ -37,7 +37,7 @@ pub struct cmsghdr {
     pub cmsg_len: type_of_cmsg_len,
     pub cmsg_level: c_int,
     pub cmsg_type: c_int,
-    pub cmsg_data: [usize; 0]
+    pub cmsg_data: [size_t; 0]
 }
 
 extern {

src/sys/socket/mod.rs

@@ -200,7 +200,7 @@ pub enum ControlMessage<'a> {
 pub struct UnknownCmsg<'a>(&'a cmsghdr, &'a [u8]);
 
 fn cmsg_align(len: usize) -> usize {
-    let align_bytes = mem::size_of::<usize>() - 1;
+    let align_bytes = mem::size_of::<size_t>() - 1;
     (len + align_bytes) & !align_bytes
 }