From cdf998a056b894a2674772d6c86f8016fec4df88 Mon Sep 17 00:00:00 2001
From: Guillem Jover <guillem@hadrons.org>
Date: Mon, 14 Dec 2015 00:44:47 +0100
Subject: [PATCH] Turn <bsd/bsd.h> inert when using LIBBSD_OVERLAY

Also print a warning stating this fact.
---
 include/bsd/bsd.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/include/bsd/bsd.h b/include/bsd/bsd.h
index c246a91..a4a033e 100644
--- a/include/bsd/bsd.h
+++ b/include/bsd/bsd.h
@@ -27,10 +27,12 @@
 #ifndef LIBBSD_H
 #define LIBBSD_H
 
+#ifdef LIBBSD_OVERLAY
+#warning "This header is meant to be used w/o the libbsd overlay."
+#else
 /*
  * Include all bsd compat headers.
  */
-
 #include <bsd/sys/cdefs.h>
 #include <bsd/sys/queue.h>
 #include <bsd/sys/tree.h>
@@ -40,5 +42,6 @@
 #include <bsd/err.h>
 #include <bsd/getopt.h>
 #include <bsd/md5.h>
+#endif
 
 #endif