From: Brian Fox <bfox@gnu.org>
Date: Tue, 5 Oct 1993 01:29:54 +0000 (+0000)
Subject: If POSIX and HAVE_UNISTD_H are defined, and unistd.h hasn't already
X-Git-Tag: emacs-19.34~11029
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=9825c716add4ee43684e9eb0b1462d8e5b9bc653;p=emacs.git

If POSIX and HAVE_UNISTD_H are defined, and unistd.h hasn't already
been included, include it.
---

diff --git a/src/systty.h b/src/systty.h
index 5d651877c95..67bf3bf240d 100644
--- a/src/systty.h
+++ b/src/systty.h
@@ -114,11 +114,18 @@ static struct sensemode {
 #ifdef AIX
 #include <sys/pty.h>
 #include <unistd.h>
+#define UNISTD_H_INCLUDED
 #endif /* AIX */
 
 #ifdef IRIX4
 /* Get _getpty prototype */
 #include <unistd.h>
+#define UNISTD_H_INCLUDED
+#endif
+
+#if defined (POSIX) && !defined (UNISTD_H_INCLUDED) && defined (HAVE_UNISTD_H)
+#include <unistd.h>
+#define UNISTD_H_INCLUDED
 #endif
 
 #ifdef SYSV_PTYS