From 344979714189bb7cab20f77dd23256c08e235b84 Mon Sep 17 00:00:00 2001
From: Ryan Ofsky <ryan@ofsky.org>
Date: Sun, 21 Jun 2026 20:47:58 -0400
Subject: [PATCH] ipc: Avoid 'unistd.h' error with MSVC

Avoid compile error from MSVC:

D:\a\bitcoin\bitcoin\src\ipc\interfaces.cpp(24,1): error C1083: Cannot open include file: 'unistd.h': No such file or directory

MinGW provides this header but MSVC does not. Header is unneeded on windows
because HandleCtrlC code that uses it is not compiled on windows.
---
 src/ipc/interfaces.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/ipc/interfaces.cpp b/src/ipc/interfaces.cpp
index 3345a92172e..71f1f4ee499 100644
--- a/src/ipc/interfaces.cpp
+++ b/src/ipc/interfaces.cpp
@@ -21,10 +21,13 @@
 #include <memory>
 #include <stdexcept>
 #include <string>
-#include <unistd.h>
 #include <utility>
 #include <vector>
 
+#ifndef WIN32
+#include <unistd.h>
+#endif
+
 namespace ipc {
 namespace {
 #ifndef WIN32