From 9b1fa2482e8efc4ffbb57643302dc68fff219153 Mon Sep 17 00:00:00 2001
From: Olivier Houchard <cognet@FreeBSD.org>
Date: Sun, 29 Jan 2006 00:02:57 +0000
Subject: [PATCH] If the sysctl kern.pts.enable doesn't exist, check that
 /dev/ptmx is there, and if so, use the pts system.

Suggested by:	rwatson
---
 lib/libc/stdlib/grantpt.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/lib/libc/stdlib/grantpt.c b/lib/libc/stdlib/grantpt.c
index 26b8017dc0fe..1f79211e4db0 100644
--- a/lib/libc/stdlib/grantpt.c
+++ b/lib/libc/stdlib/grantpt.c
@@ -100,8 +100,13 @@ __use_pts(void)
 
 	len = sizeof(use_pts);
 	error = sysctlbyname("kern.pts.enable", &use_pts, &len, NULL, 0);
-	if (error)
-		return (0);
+	if (error) {
+		struct stat sb;
+
+		if (stat("/dev/ptmx", &sb) != 0)
+			return (0);
+		use_pts = 1;
+	}
 	return (use_pts);
 }