From e976502216a069039f433b952433ef7ebc655850 Mon Sep 17 00:00:00 2001
From: Enji Cooper <ngie@FreeBSD.org>
Date: Sat, 22 Apr 2017 19:32:23 +0000
Subject: [PATCH] libgeom(3): note that stdio.h is required when referencing
 gctl_dump(3)

gctl_dump(3) is only exposed when stdio.h is #include'd first, per its
addition in r112510. The reasoning noted for the conditional "exposure"
of the function was to "limit #include pollution".

This addresses an issue I found with the documentation when looking at
bug 218809, which in turn addresses a -Wimplicit-function-declaration
compiler warning in `tools/regression/geom_gpt/test.c` (it uses
gctl_dump(3)).

MFC after:	5 weeks
Sponsored by:	Dell EMC Isilon
---
 lib/libgeom/libgeom.3 | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/libgeom/libgeom.3 b/lib/libgeom/libgeom.3
index 566d09243f6..dbe21c84d38 100644
--- a/lib/libgeom/libgeom.3
+++ b/lib/libgeom/libgeom.3
@@ -63,6 +63,10 @@
 .Sh LIBRARY
 .Lb libgeom
 .Sh SYNOPSIS
+.Bd -literal
+/* stdio.h is only required for `gctl_dump` */
+.Ed
+.In stdio.h
 .In libgeom.h
 .Ss "Statistics Functions"
 .Ft void