freebsd update adding elf_aux_info from 12.x release.

Author: devnexen

libc-test/build.rs

@@ -1679,6 +1679,11 @@ fn test_freebsd(target: &str) {
         _ => cfg.define("_WANT_FREEBSD11_STAT", None),
     };
 
+    let freebsdlast = match freebsd_ver {
+        Some(12) | Some(13) => true,
+        _ => false,
+    };
+
     headers! { cfg:
                 "aio.h",
                 "arpa/inet.h",
@@ -1725,6 +1730,7 @@ fn test_freebsd(target: &str) {
                 "stdlib.h",
                 "string.h",
                 "sys/capsicum.h",
+                [freebsdlast]:"sys/auxv.h",
                 "sys/cpuset.h",
                 "sys/event.h",
                 "sys/extattr.h",

src/unix/bsd/freebsdlike/freebsd/freebsd12/mod.rs

@@ -227,6 +227,7 @@ extern "C" {
     pub fn fdatasync(fd: ::c_int) -> ::c_int;
 
     pub fn getrandom(buf: *mut ::c_void, buflen: ::size_t, flags: ::c_uint) -> ::ssize_t;
+    pub fn elf_aux_info(aux: ::c_int, buf: *mut ::c_void, buflen: ::c_int) -> ::c_int;
 }
 
 cfg_if! {

src/unix/bsd/freebsdlike/freebsd/freebsd13/mod.rs

@@ -231,6 +231,7 @@ extern "C" {
     pub fn fdatasync(fd: ::c_int) -> ::c_int;
 
     pub fn getrandom(buf: *mut ::c_void, buflen: ::size_t, flags: ::c_uint) -> ::ssize_t;
+    pub fn elf_aux_info(aux: ::c_int, buf: *mut ::c_void, buflen: ::c_int) -> ::c_int;
 }
 
 cfg_if! {