Update libc crate to 0.2.66

This change updates the libc crate to version 0.2.66.

Import subrepo libc/:libc at 4f11029a68040c90acf771976b019c1ef273a8cd

1 files changed, 12 insertions, 8 deletions

diff --git a/libc/src/unix/linux_like/linux/gnu/b32/mod.rs b/libc/src/unix/linux_like/linux/gnu/b32/mod.rs
index 2e584f2..cc6b636 100644
--- a/libc/src/unix/linux_like/linux/gnu/b32/mod.rs
+++ b/libc/src/unix/linux_like/linux/gnu/b32/mod.rs
@@ -238,14 +238,15 @@ pub const PTRACE_GETREGS: ::c_uint = 12;
 pub const PTRACE_SETREGS: ::c_uint = 13;
 
 #[link(name = "util")]
-extern {
-    pub fn sysctl(name: *mut ::c_int,
-                  namelen: ::c_int,
-                  oldp: *mut ::c_void,
-                  oldlenp: *mut ::size_t,
-                  newp: *mut ::c_void,
-                  newlen: ::size_t)
-                  -> ::c_int;
+extern "C" {
+    pub fn sysctl(
+        name: *mut ::c_int,
+        namelen: ::c_int,
+        oldp: *mut ::c_void,
+        oldlenp: *mut ::size_t,
+        newp: *mut ::c_void,
+        newlen: ::size_t,
+    ) -> ::c_int;
 }
 
 cfg_if! {
@@ -261,6 +262,9 @@ cfg_if! {
     } else if #[cfg(target_arch = "powerpc")] {
         mod powerpc;
         pub use self::powerpc::*;
+    } else if #[cfg(target_arch = "sparc")] {
+        mod sparc;
+        pub use self::sparc::*;
     } else {
         // Unknown target_arch
     }