From 7fb5f2bae42caf75f9785ded7cc398bf59176800 Mon Sep 17 00:00:00 2001
From: Robert Nordier <rnordier@FreeBSD.org>
Date: Wed, 4 Nov 1998 08:55:34 +0000
Subject: [PATCH] Handle a zero elements argument.

PR:		8566
Submitted by:	Archie Cobbs <archie@whistle.com>
---
 lib/libc/stdlib/merge.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/libc/stdlib/merge.c b/lib/libc/stdlib/merge.c
index a47e3007290..e188dfe1a1a 100644
--- a/lib/libc/stdlib/merge.c
+++ b/lib/libc/stdlib/merge.c
@@ -111,6 +111,9 @@ mergesort(base, nmemb, size, cmp)
 		return (-1);
 	}
 
+	if (nmemb == 0)
+		return (0);
+
 	/*
 	 * XXX
 	 * Stupid subtraction for the Cray.