From 6a31edcb3843d4cdfe34a9c0e7a3d871a1fe38c8 Mon Sep 17 00:00:00 2001
From: Howard Hinnant <howard.hinnant@gmail.com>
Date: Mon, 6 Feb 2017 10:18:40 -0500
Subject: [PATCH] Silence "unused" warning for strerror_r

---
 tz.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tz.cpp b/tz.cpp
index f5caa8a..1f887c9 100644
--- a/tz.cpp
+++ b/tz.cpp
@@ -3111,7 +3111,7 @@ current_zone()
         {
             std::ostringstream os;
             char message[128];
-            strerror_r(errno, message, 128);
+            (void)strerror_r(errno, message, 128);
             os << "realpath failure: errno = " << errno << "; " << message;
             throw std::runtime_error(os.str());
         }