From e5b5d591b0f846b5c8ee77396d8d9ab5d3503bf6 Mon Sep 17 00:00:00 2001
From: Ray Speth <speth@mit.edu>
Date: Tue, 8 Sep 2015 18:26:35 -0400
Subject: [PATCH] Fix compilation errors in C++11 mode under Cygwin

---
 SConstruct | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/SConstruct b/SConstruct
index f80c5b8b2..d4eed7bb1 100644
--- a/SConstruct
+++ b/SConstruct
@@ -247,7 +247,11 @@ defaults.warningFlags = '-Wall'
 
 if 'gcc' in env.subst('$CC'):
     defaults.optimizeCcFlags += ' -Wno-inline'
-    defaults.cxxFlags = '-std=c++11'
+    if env['OS'] == 'Cygwin':
+        # See http://stackoverflow.com/questions/18784112
+        defaults.cxxFlags = '-std=gnu++11'
+    else:
+        defaults.cxxFlags = '-std=c++11'
 
 elif env['CC'] == 'cl': # Visual Studio
     defaults.cxxFlags = ['/EHsc']