From 019e667ff5881edead94e5fa074ca24dfb9358cb Mon Sep 17 00:00:00 2001
From: PulkoMandy <pulkomandy@pulkomandy.tk>
Date: Fri, 15 May 2026 11:22:11 +0200
Subject: [PATCH] Add Haiku support

---
 serial-unix/README.md    | 1 +
 serial-unix/src/error.rs | 6 ++++++
 serial/README.md         | 1 +
 3 files changed, 8 insertions(+)

diff --git a/serial-unix/README.md b/serial-unix/README.md
index a83f302..fb62ced 100644
--- a/serial-unix/README.md
+++ b/serial-unix/README.md
@@ -13,6 +13,7 @@ API. The following platforms are confirmed to be compatible:
 * OS X (x86_64)
 * FreeBSD (amd64)
 * OpenBSD (amd64)
+* Haiku (amd64)
 
 ## Usage
 
diff --git a/serial-unix/src/error.rs b/serial-unix/src/error.rs
index 293772d..faad939 100644
--- a/serial-unix/src/error.rs
+++ b/serial-unix/src/error.rs
@@ -70,6 +70,12 @@ pub fn errno() -> i32 {
         __errno()
     }
 
+    #[cfg(target_os = "haiku")]
+    unsafe fn errno_location() -> *const c_int {
+        extern { fn _errnop() -> *const c_int; }
+        _errnop()
+    }
+
     #[cfg(any(target_os = "linux", target_os = "android"))]
     unsafe fn errno_location() -> *const c_int {
         extern { fn __errno_location() -> *const c_int; }
diff --git a/serial/README.md b/serial/README.md
index 6f638da..1effbbd 100644
--- a/serial/README.md
+++ b/serial/README.md
@@ -15,6 +15,7 @@ termios API. The following platforms are confirmed to be compatible:
 * FreeBSD (amd64)
 * OpenBSD (amd64)
 * Windows (x86_64)
+* Haiku (x86_64)
 
 ## Usage
 Add `serial` as a dependency in `Cargo.toml`: