Update libc crate to 0.2.57

This change updates the libc crate to version 0.2.57.

Import subrepo libc/:libc at cdc48ea36d8d2890dba38e8f779001e6855339a2

1 files changed, 14 insertions, 0 deletions

diff --git a/libc/src/unix/bsd/netbsdlike/openbsd/aarch64.rs b/libc/src/unix/bsd/netbsdlike/openbsd/aarch64.rs
new file mode 100644
index 0000000..6a8cbb5
--- /dev/null
+++ b/libc/src/unix/bsd/netbsdlike/openbsd/aarch64.rs
@@ -0,0 +1,14 @@
+pub type c_long = i64;
+pub type c_ulong = u64;
+pub type c_char = u8;
+
+// should be pub(crate), but that requires Rust 1.18.0
+cfg_if! {
+    if #[cfg(libc_const_size_of)] {
+        #[doc(hidden)]
+        pub const _ALIGNBYTES: usize = ::mem::size_of::<::c_long>() - 1;
+    } else {
+        #[doc(hidden)]
+        pub const _ALIGNBYTES: usize = 8 - 1;
+    }
+}