From 20d53cebc122829449524ef339ce44e13c6e85ec Mon Sep 17 00:00:00 2001
From: FRIGN <dev@frign.de>
Date: Tue, 22 Sep 2015 13:13:25 +0200
Subject: [PATCH] dup() -> dup2()

gcc would warn about an unused result. We know it is 0 and dup()
can't fail in these circumstances, as we closed fd0 previously.
Using dup2() to do the same saves one line and shuts gcc up, bringing
us a clean build back.
---
 st.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/st.c b/st.c
index bd8b815..bcf74b3 100644
--- a/st.c
+++ b/st.c
@@ -1430,8 +1430,7 @@ ttynew(void)
 	if (opt_line) {
 		if ((cmdfd = open(opt_line, O_RDWR)) < 0)
 			die("open line failed: %s\n", strerror(errno));
-		close(0);
-		dup(cmdfd);
+		dup2(cmdfd, 0);
 		stty();
 		return;
 	}