unbreak openbsd code

- upgrades libc to version with si_addr support in openbsd
- declares libc use for getentropy

diff --git a/src/liblibc b/src/liblibc
index 4b9b07c71997da23d5d1e3035cd16a5855b94ecc..e0c0bf439add63a6a25a25ba47e4aec9547bf9af 160000 (submodule)
--- a/src/liblibc
+++ b/src/liblibc
@@ -1 +1 @@
-Subproject commit 4b9b07c71997da23d5d1e3035cd16a5855b94ecc
+Subproject commit e0c0bf439add63a6a25a25ba47e4aec9547bf9af

diff --git a/src/libstd/rand/os.rs b/src/libstd/rand/os.rs
index 13965ce810ddc1bbd37a1db10975aa75e61dd526..273b17400a9cae7006c2a52783f00f13a0348511 100644 (file)
--- a/src/libstd/rand/os.rs
+++ b/src/libstd/rand/os.rs
@@ -182,8 +182,8 @@ fn fill_bytes(&mut self, v: &mut [u8]) {
 #[cfg(target_os = "openbsd")]
 mod imp {
     use io;
+    use libc;
     use mem;
-    use libc::c_long;
     use sys::os::errno;
     use rand::Rng;