From 5f4c8985addc8048139359606962a9bb3457b469 Mon Sep 17 00:00:00 2001
From: Juanma Barranquero <lekktu@gmail.com>
Date: Tue, 31 Oct 2006 13:50:35 +0000
Subject: [PATCH] [!WINDOWSNT]: Include <fcntl.h> if available.
 (set_tcp_socket): Prefer O_NONBLOCK, then O_NDELAY, then FIONBIO to set the
 socket in non-blocking mode.

---
 lib-src/emacsclient.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/lib-src/emacsclient.c b/lib-src/emacsclient.c
index b3a5180653c..b7f3dd592a7 100644
--- a/lib-src/emacsclient.c
+++ b/lib-src/emacsclient.c
@@ -38,6 +38,9 @@ Boston, MA 02110-1301, USA.  */
 # define INITIALIZE() (initialize_sockets ())
 typedef unsigned long IOCTL_BOOL_ARG;
 #else
+#ifdef HAVE_FCNTL_H
+# include <fcntl.h>
+#endif
 # include <netinet/in.h>
 # include <sys/ioctl.h>
 # define INVALID_SOCKET -1
@@ -486,7 +489,15 @@ set_tcp_socket ()
       return INVALID_SOCKET;
     }
 
+#ifdef O_NONBLOCK
+  IOCTL (s, O_NONBLOCK, &c_arg);
+#else
+#ifdef O_NDELAY
+  IOCTL (s, O_NDELAY, &c_arg);
+#else
   IOCTL (s, FIONBIO, &c_arg);
+#endif
+#endif 
   setsockopt (s, SOL_SOCKET, SO_LINGER, (char *) &l_arg, sizeof l_arg);
 
   /*
-- 
2.30.2