From 8a63d4ba5e5f1bc3c51f62fdca3358e0e653627a Mon Sep 17 00:00:00 2001
From: "Richard M. Stallman" <rms@gnu.org>
Date: Thu, 15 Sep 1994 05:51:07 +0000
Subject: [PATCH] (SUNOS4): Defined.

---
 src/s/sunos4-0.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/s/sunos4-0.h b/src/s/sunos4-0.h
index 17f17471900..02bdd1ea0c5 100644
--- a/src/s/sunos4-0.h
+++ b/src/s/sunos4-0.h
@@ -1,5 +1,9 @@
 #include "bsd4-2.h"
 
+#ifndef SUNOS4
+#define SUNOS4
+#endif
+
 #if 0  /* This may have been needed for an earlier version of Sun OS 4.
 	  It seems to cause warnings in 4.0.3 and 4.1.  */
 #define O_NDELAY        FNDELAY /* Non-blocking I/O (4.2 style) */
-- 
2.39.5