From 585b093ce861bbf06d29237481e6a0a748be9156 Mon Sep 17 00:00:00 2001
From: Volker Lendecke <vl@samba.org>
Date: Fri, 22 Jan 2021 11:13:53 +0100
Subject: [PATCH] lib: Provide a meaningful errno if FD_CLOEXEC is missing

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
---
 lib/util/blocking.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/util/blocking.c b/lib/util/blocking.c
index 0d845c0b2c4..6d7fc910676 100644
--- a/lib/util/blocking.c
+++ b/lib/util/blocking.c
@@ -69,6 +69,8 @@ _PUBLIC_ bool smb_set_close_on_exec(int fd)
 			return true;
 		}
 	}
+#else
+	errno = ENOSYS;
 #endif
 	return false;
 }