From c459d509b7c7fe7d8200ea3791d1ef0b245126ab Mon Sep 17 00:00:00 2001
From: "Wladimir J. van der Laan" <laanwj@gmail.com>
Date: Sun, 5 Mar 2017 09:29:37 +0000
Subject: build: Probe MSG_DONTWAIT in the same way as MSG_NOSIGNAL

Instead of the WIN32-specific workaround, detect lack of `MSG_DONTWAIT`
in the build system. This allows other platforms without `MSG_DONTWAIT`
to work too.
---
 src/compat.h | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

(limited to 'src/compat.h')

diff --git a/src/compat.h b/src/compat.h
index 28aa77eea2..6f4d4e65f0 100644
--- a/src/compat.h
+++ b/src/compat.h
@@ -47,9 +47,7 @@
 #include <unistd.h>
 #endif
 
-#ifdef WIN32
-#define MSG_DONTWAIT        0
-#else
+#ifndef WIN32
 typedef u_int SOCKET;
 #include "errno.h"
 #define WSAGetLastError()   errno
@@ -79,6 +77,11 @@ typedef u_int SOCKET;
 #define MSG_NOSIGNAL 0
 #endif
 
+// MSG_DONTWAIT is not available on some platforms, if it doesn't exist define it as 0
+#if !defined(HAVE_MSG_DONTWAIT) && !defined(MSG_DONTWAIT)
+#define MSG_DONTWAIT 0
+#endif
+
 #if HAVE_DECL_STRNLEN == 0
 size_t strnlen( const char *start, size_t max_len);
 #endif // HAVE_DECL_STRNLEN
-- 
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