From e45b2259ec3d7d128e1da66cf5b1a76f6618d9e9 Mon Sep 17 00:00:00 2001
From: Konstantin Belousov <kib@FreeBSD.org>
Date: Tue, 30 Sep 2008 11:25:55 +0000
Subject: [PATCH] Add unistd.h to the getosreldate(3) manpage. Update
 referenced example to include unistd.h per manpage. Update example to be more
 style(9)-ish, silence warnings and add FreeBSD id to the source file.

---
 lib/libc/gen/getosreldate.3                      |  3 ++-
 share/examples/FreeBSD_version/FreeBSD_version.c | 14 +++++++++-----
 2 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/lib/libc/gen/getosreldate.3 b/lib/libc/gen/getosreldate.3
index ade53b86195d..95f63b56c7db 100644
--- a/lib/libc/gen/getosreldate.3
+++ b/lib/libc/gen/getosreldate.3
@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd December 2, 2005
+.Dd September 30, 2008
 .Dt GETOSRELDATE 3
 .Os
 .Sh NAME
@@ -34,6 +34,7 @@
 .Sh LIBRARY
 .Lb libc
 .Sh SYNOPSIS
+.In unistd.h
 .Ft int
 .Fn getosreldate void
 .Sh DESCRIPTION
diff --git a/share/examples/FreeBSD_version/FreeBSD_version.c b/share/examples/FreeBSD_version/FreeBSD_version.c
index 1d75897b9683..036a5aeaaa20 100644
--- a/share/examples/FreeBSD_version/FreeBSD_version.c
+++ b/share/examples/FreeBSD_version/FreeBSD_version.c
@@ -1,3 +1,4 @@
+/* $FreeBSD$ */
 #if __FreeBSD__ == 0		/* 1.0 did not define __FreeBSD__ */
 #define __FreeBSD_version 199401
 #elif __FreeBSD__ == 1		/* 1.1 defined it to be 1 */
@@ -5,13 +6,16 @@
 #else				/* 2.0 and higher define it to be 2 */
 #include <osreldate.h>		/* and this works */
 #endif
+#include <stdio.h>
+#include <unistd.h>
 
-int main(void) {
-  extern int getosreldate(void);
-  printf("Compilation release date: %d\n", __FreeBSD_version);
+int
+main(void) {
+	printf("Compilation release date: %d\n", __FreeBSD_version);
 #if __FreeBSD_version >= 199408
-  printf("Execution environment release date: %d\n", getosreldate());
+	printf("Execution environment release date: %d\n", getosreldate());
 #else
-  printf("Execution environment release date: can't tell\n");
+	printf("Execution environment release date: can't tell\n");
 #endif
+	return (0);
 }