From cb6a6ba22134c34fc895078e36e6b3c4e8dcf002 Mon Sep 17 00:00:00 2001
From: tholo <tholo@openbsd.org>
Date: Sun, 2 Feb 1997 00:16:32 +0000
Subject: [PATCH] Correct type of brk(), use <unistd.h>, reference mmap(2);
 from NetBSD

---
 lib/libc/sys/brk.2 | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/libc/sys/brk.2 b/lib/libc/sys/brk.2
index 0c3e20434e3..f580c15f685 100644
--- a/lib/libc/sys/brk.2
+++ b/lib/libc/sys/brk.2
@@ -41,8 +41,8 @@
 .Nm sbrk
 .Nd change data segment size
 .Sh SYNOPSIS
-.Fd #include <sys/types.h>
-.Ft int
+.Fd #include <unistd.h>
+.Ft char *
 .Fn brk "const char *addr"
 .Ft char *
 .Fn sbrk "int incr"
@@ -135,6 +135,7 @@ to support the expansion.
 .Xr execve 2 ,
 .Xr getrlimit 2 ,
 .Xr malloc 3 ,
+.Xr mmap 2 ,
 .Xr end 3
 .Sh BUGS
 Setting the break may fail due to a temporary lack of
-- 
2.20.1