From be9bda4d938eabeab6e8cbfcba591208aabe9e49 Mon Sep 17 00:00:00 2001
From: wanglei <wllenyj@gmail.com>
Date: Tue, 7 Jul 2026 09:55:47 +0800
Subject: [PATCH] support nuttx target os

When you use errno() in nuttx os, you will get link error
`undefined reference to `errno_location'`

See https://doc.rust-lang.org/rustc/platform-support/nuttx.html
for more information about Nuttx target.

Signed-off-by: wanglei <wllenyj@gmail.com>
---
 src/unix.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/unix.rs b/src/unix.rs
index 10d2f05..77898b4 100644
--- a/src/unix.rs
+++ b/src/unix.rs
@@ -77,6 +77,7 @@ extern "C" {
             target_os = "netbsd",
             target_os = "android",
             target_os = "espidf",
+            target_os = "nuttx",
             target_os = "vxworks",
             target_os = "cygwin",
             target_env = "newlib"