From 4c7dc8f03182a6e0ffe62d0b7ad8e8b40fa9c225 Mon Sep 17 00:00:00 2001
From: Tink Team <tink-dev@google.com>
Date: Mon, 24 Jun 2019 17:44:56 -0700
Subject: [PATCH] define _GNU_SOURCE which we need due to vasprintf(3)

PiperOrigin-RevId: 254873900
---
 cc/util/errors.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/cc/util/errors.cc b/cc/util/errors.cc
index d9a073750..83010a154 100644
--- a/cc/util/errors.cc
+++ b/cc/util/errors.cc
@@ -14,6 +14,10 @@
 //
 ///////////////////////////////////////////////////////////////////////////////
 
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE  // needed for vasprintf(3)
+#endif
+
 #include "tink/util/errors.h"
 
 #include <stdarg.h>
-- 
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