From 63f6c104495777de70a27f838caa19fd0590a8aa Mon Sep 17 00:00:00 2001
From: vitaut <victor.zverovich@gmail.com>
Date: Sun, 14 Jun 2015 09:36:23 -0700
Subject: [PATCH] Suppress a warning about unused strerror_r.

---
 format.cc | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/format.cc b/format.cc
index d12424d0..bf7032bb 100644
--- a/format.cc
+++ b/format.cc
@@ -207,7 +207,10 @@ int safe_strerror(
     StrError(int error_code, char *&buffer, std::size_t buffer_size)
       : error_code_(error_code), buffer_(buffer), buffer_size_(buffer_size) {}
 
-    int run() { return handle(strerror_r(error_code_, buffer_, buffer_size_)); }
+    int run() {
+      strerror_r(0, 0, "");  // Suppress a warning about unused strerror_r.
+      return handle(strerror_r(error_code_, buffer_, buffer_size_));
+    }
   };
   return StrError(error_code, buffer, buffer_size).run();
 }