Remove the long_array conditional

Author: tgross35

build.rs

@@ -15,7 +15,6 @@ const ALLOWED_CFGS: &'static [&'static str] = &[
     "freebsd14",
     "freebsd15",
     "libc_deny_warnings",
-    "libc_long_array",
     "libc_thread_local",
     "libc_ctest",
 ];
@@ -77,11 +76,6 @@ fn main() {
         set_cfg("libc_deny_warnings");
     }
 
-    // Rust >= 1.47 supports long array:
-    if rustc_minor_ver >= 47 || rustc_dep_of_std {
-        set_cfg("libc_long_array");
-    }
-
     // #[thread_local] is currently unstable
     if rustc_dep_of_std {
         set_cfg("libc_thread_local");

src/unix/bsd/apple/long_array.rs

@@ -1307,6 +1307,12 @@ s! {
         pub ifs6_out_mldreport: ::u_quad_t,
         pub ifs6_out_mlddone: ::u_quad_t,
     }
+
+    // kern_control.h
+    pub struct ctl_info {
+        pub ctl_id: u32,
+        pub ctl_name: [::c_char; MAX_KCTL_NAME],
+    }
 }
 
 s_no_extra_traits! {
@@ -5753,6 +5759,9 @@ pub const NETLINK_GENERIC: ::c_int = 0;
 pub const DOT3COMPLIANCE_STATS: ::c_int = 1;
 pub const DOT3COMPLIANCE_COLLS: ::c_int = 2;
 
+// kern_control.h
+pub const MAX_KCTL_NAME: usize = 96;
+
 f! {
     pub fn CMSG_NXTHDR(mhdr: *const ::msghdr,
                        cmsg: *const ::cmsghdr) -> *mut ::cmsghdr {