From a07c3aeb73123a9282d528ad8a1afba2f0b1a0dd Mon Sep 17 00:00:00 2001
From: Konstantin Belousov <kib@FreeBSD.org>
Date: Wed, 24 May 2017 09:25:13 +0000
Subject: Use __BSD_VISIBLE test instead checking for absense of _POSIX_SOURCE.

The Termios headers <termios.h> and <sys/_termios.h> used sometimes
_POSIX_SOURCE directly to determine if a thing should be exposed to
the user.  This circumvented the feature mechanisms of <sys/cdefs.h>.

Submitted by:	Sebastian Huber <sebastian.huber@embedded-brains.de>
MFC after:	2 weeks
---
 include/termios.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'include/termios.h')

diff --git a/include/termios.h b/include/termios.h
index ed8e328d7fd9..333ab1cd6cc5 100644
--- a/include/termios.h
+++ b/include/termios.h
@@ -42,12 +42,12 @@ typedef	__pid_t		pid_t;
 #define	_PID_T_DECLARED
 #endif
 
-#ifndef _POSIX_SOURCE
+#if __BSD_VISIBLE
 #define	OXTABS		TAB3
 #define	MDMBUF		CCAR_OFLOW
 #endif 
 
-#ifndef _POSIX_SOURCE
+#if __BSD_VISIBLE
 #define	CCEQ(val, c)	((c) == (val) && (val) != _POSIX_VDISABLE)
 #endif
 
@@ -57,7 +57,7 @@ typedef	__pid_t		pid_t;
 #define	TCSANOW		0		/* make change immediate */
 #define	TCSADRAIN	1		/* drain output, then change */
 #define	TCSAFLUSH	2		/* drain output, flush input */
-#ifndef _POSIX_SOURCE
+#if __BSD_VISIBLE
 #define	TCSASOFT	0x10		/* flag - don't alter h.w. state */
 #endif
 
@@ -95,7 +95,7 @@ __END_DECLS
 
 #endif /* !_TERMIOS_H_ */
 
-#ifndef _POSIX_SOURCE
+#if __BSD_VISIBLE
 #include <sys/ttycom.h>
 #include <sys/ttydefaults.h>
 #endif
-- 
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