From bacb69e4f0c544d74993f573de74a4ab0bd35082 Mon Sep 17 00:00:00 2001
From: Erik Ekman <erik@kryo.se>
Date: Thu, 29 May 2014 23:21:55 +0200
Subject: [PATCH] Mark usage() method as noreturn to avoid warning on BSD

Warning from OpenBSD/NetBSD:
  CC iodine.c
  iodine.c: In function 'main':
  iodine.c:141:6: warning: 'nameservaddr_len' may be used uninitialized in this function
---
 src/iodine.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/iodine.c b/src/iodine.c
index 519eac3..0975739 100644
--- a/src/iodine.c
+++ b/src/iodine.c
@@ -57,6 +57,12 @@ sighandler(int sig)
 	client_stop();
 }
 
+#if defined(__GNUC__) || defined(__clang__)
+/* mark as no return to help some compilers to avoid warnings
+ * about use of uninitialized variables */
+static void usage() __attribute__((noreturn));
+#endif
+
 static void
 usage() {
 	extern char *__progname;