Add VxWorks support (#105)

* Add vxworks platform support

* Mention VxWorks support in CHANGELOG.md

Author: hax0kartik

CHANGELOG.md

@@ -1,5 +1,8 @@
 # [Unreleased]
 
+- Add VxWorks support
+  [#105](https://github.com/lambda-fairy/rust-errno/pull/105)
+
 # [0.3.10] - 2024-11-29
 
 - Update to windows-sys 0.59

src/lib.rs

@@ -124,6 +124,8 @@ fn check_description() {
         "Argument list too long"
     } else if cfg!(target_os = "haiku") {
         "Operation not allowed"
+    } else if cfg!(target_os = "vxworks") {
+        "operation not permitted"
     } else {
         "Operation not permitted"
     };

src/unix.rs

@@ -77,6 +77,7 @@ extern "C" {
             target_os = "netbsd",
             target_os = "android",
             target_os = "espidf",
+            target_os = "vxworks",
             target_env = "newlib"
         ),
         link_name = "__errno"