From 19df86cbb39f2429f7c7e20c99c606c38a5fd4e9 Mon Sep 17 00:00:00 2001
From: Rich Felker <dalias@aerifal.cx>
Date: Thu, 28 Jan 2016 00:38:23 -0500
Subject: add errno setting to stub utmpxname function

---
 src/legacy/utmpx.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/legacy/utmpx.c b/src/legacy/utmpx.c
index 46ca4b8b..e2843c94 100644
--- a/src/legacy/utmpx.c
+++ b/src/legacy/utmpx.c
@@ -1,5 +1,6 @@
 #include <utmpx.h>
 #include <stddef.h>
+#include <errno.h>
 #include "libc.h"
 
 void endutxent(void)
@@ -36,6 +37,7 @@ void updwtmpx(const char *f, const struct utmpx *u)
 
 int __utmpxname(const char *f)
 {
+	errno = ENOTSUP;
 	return -1;
 }
 
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