From cda2316f6b6c14573aeb0b1a4f82985df1ecfcd1 Mon Sep 17 00:00:00 2001
From: "Richard M. Stallman" <rms@gnu.org>
Date: Wed, 13 Apr 1994 23:25:17 +0000
Subject: [PATCH] [HAVE_UNISTD_H]: Include unistd.h.

---
 src/unexsunos4.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/unexsunos4.c b/src/unexsunos4.c
index fd0f7ec419c..53c3dc13bf9 100644
--- a/src/unexsunos4.c
+++ b/src/unexsunos4.c
@@ -37,6 +37,9 @@
 #include <config.h>
 #endif
 
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
 
 /* NetBSD needs this bit, but SunOS does not have it.  */
 #ifndef MAP_FILE
-- 
2.39.5