From c1028be190aa78ca4b1a98c72cccac2c39b1abb7 Mon Sep 17 00:00:00 2001
From: "Emil J. Tywoniak" <emil@tywoniak.eu>
Date: Sun, 5 Jan 2025 23:55:38 +0100
Subject: [PATCH] io: smooth out non-POSIX function usage across platforms

---
 kernel/io.cc | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/kernel/io.cc b/kernel/io.cc
index 0fdbd3c37..7d812fc74 100644
--- a/kernel/io.cc
+++ b/kernel/io.cc
@@ -4,6 +4,12 @@
 #include <dirent.h>
 #include <string>
 
+#if !defined(WIN32)
+#include <unistd.h>
+#else
+#include <io.h>
+#endif
+
 YOSYS_NAMESPACE_BEGIN
 
 // Set of utilities for handling files