From 797239c451c0a383b026d12be03a6f60306bf691 Mon Sep 17 00:00:00 2001
From: Tobiasz Laskowski <tobil4sk@outlook.com>
Date: Mon, 23 Mar 2026 17:40:26 +0000
Subject: [PATCH] Fix missing header for posix counting semaphores

---
 src/hx/thread/CountingSemaphore.posix.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/hx/thread/CountingSemaphore.posix.cpp b/src/hx/thread/CountingSemaphore.posix.cpp
index 438c1974a..ed317a776 100644
--- a/src/hx/thread/CountingSemaphore.posix.cpp
+++ b/src/hx/thread/CountingSemaphore.posix.cpp
@@ -2,6 +2,7 @@
 #include <semaphore.h>
 #include <sys/time.h>
 #include <memory>
+#include <cerrno>
 #include <hx/thread/CountingSemaphore.hpp>
 
 struct hx::thread::CountingSemaphore_obj::Impl
@@ -88,4 +89,4 @@ bool hx::thread::CountingSemaphore_obj::tryAcquire(Null<double> timeout)
 			}
 		}
 	}
-}
\ No newline at end of file
+}