Horizon OS STD support

Co-authored-by: Ian Chamberlain <ian.h.chamberlain@gmail.com>
Co-authored-by: Mark Drobnak <mark.drobnak@gmail.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/library/std/src/sys/unix/mod.rs b/library/std/src/sys/unix/mod.rs
index ddec60961f0..000eaff6a02 100644
--- a/library/std/src/sys/unix/mod.rs
+++ b/library/std/src/sys/unix/mod.rs
@@ -43,10 +43,10 @@ pub mod thread_local_key;
 pub mod thread_parker;
 pub mod time;
 
-#[cfg(target_os = "espidf")]
+#[cfg(any(target_os = "espidf", target_os = "horizon"))]
 pub fn init(argc: isize, argv: *const *const u8) {}
 
-#[cfg(not(target_os = "espidf"))]
+#[cfg(not(any(target_os = "espidf", target_os = "horizon")))]
 // SAFETY: must be called only once during runtime initialization.
 // NOTE: this is not guaranteed to run, for example when Rust code is called externally.
 pub unsafe fn init(argc: isize, argv: *const *const u8) {
@@ -344,7 +344,7 @@ cfg_if::cfg_if! {
     }
 }
 
-#[cfg(target_os = "espidf")]
+#[cfg(any(target_os = "espidf", target_os = "horizon"))]
 mod unsupported {
     use crate::io;