From af80ac49fd64b64009568270997f285b89864c0c Mon Sep 17 00:00:00 2001
From: David Carlier <devnexen@gmail.com>
Date: Fri, 27 Sep 2024 22:01:43 +0000
Subject: [PATCH] arc4random api for haiku

(backport <https://github.com/rust-lang/libc/pull/3945>)
(cherry picked from commit 8924123c42e5fe9232f524129fd4e0d6f239b1d2)
---
 libc-test/build.rs    | 1 +
 src/unix/haiku/mod.rs | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/libc-test/build.rs b/libc-test/build.rs
index fb779daecc123..dfa6185195dbc 100644
--- a/libc-test/build.rs
+++ b/libc-test/build.rs
@@ -4834,6 +4834,7 @@ fn test_haiku(target: &str) {
                "libutil.h",
                "link.h",
                "pty.h",
+               "stdlib.h",
                "stringlist.h",
                "sys/link_elf.h",
     }
diff --git a/src/unix/haiku/mod.rs b/src/unix/haiku/mod.rs
index 4dc931cd047d9..3a226e6696405 100644
--- a/src/unix/haiku/mod.rs
+++ b/src/unix/haiku/mod.rs
@@ -2133,6 +2133,10 @@ extern "C" {
         >,
         data: *mut ::c_void,
     ) -> ::c_int;
+
+    pub fn arc4random() -> u32;
+    pub fn arc4random_uniform(upper_bound: u32) -> u32;
+    pub fn arc4random_buf(buf: *mut ::c_void, n: ::size_t);
 }
 
 #[link(name = "gnu")]