From 375bef44432a0fad7ebbd3634a3e950e2d457ec1 Mon Sep 17 00:00:00 2001
From: David Adam <zanchey@ucc.gu.uwa.edu.au>
Date: Thu, 21 Apr 2016 22:34:37 +0800
Subject: [PATCH] configure: enable GNU/POSIX extensions by default

Reenable mkostemp on Cygwin. Work on #2952.
---
 configure.ac | 1 +
 1 file changed, 1 insertion(+)

diff --git a/configure.ac b/configure.ac
index 2e3409bc3..537e9dc59 100644
--- a/configure.ac
+++ b/configure.ac
@@ -92,6 +92,7 @@ AC_PROG_CXX([g++ c++])
 AC_PROG_INSTALL
 AC_PROG_SED
 AC_LANG(C++)
+AC_USE_SYSTEM_EXTENSIONS
 
 echo "CXXFLAGS: $CXXFLAGS"