From 544e8d474bc0904fcfc9acba319fc7328c428426 Mon Sep 17 00:00:00 2001
From: David Given <dg@cowlark.com>
Date: Sun, 17 Jul 2022 13:36:26 +0200
Subject: [PATCH] Only Windows has O_BINARY.

---
 util/ack/run.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/util/ack/run.c b/util/ack/run.c
index baafac5e7..e8265aee9 100644
--- a/util/ack/run.c
+++ b/util/ack/run.c
@@ -21,6 +21,10 @@
 static char rcs_id[] = "$Id$";
 #endif
 
+#if !defined WIN32
+#define O_BINARY 0
+#endif
+
 #define ARG_MORE 40 /* The size of args chunks to allocate */
 
 static int run_exec(trf*);