From 54c3ed92b6ff812f7c551429d59d02c5b8671fa0 Mon Sep 17 00:00:00 2001
From: Victor Zverovich <victor.zverovich@gmail.com>
Date: Sat, 7 Sep 2013 14:54:26 -0700
Subject: [PATCH] Add -std=c++11 flag only if supported by compiler.

---
 CMakeLists.txt | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2ea6e22c..c6105b5e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -12,7 +12,9 @@ project(FORMAT)
 
 include(CheckCXXCompilerFlag)
 check_cxx_compiler_flag(-std=c++11 HAVE_STD_CPP11_FLAG)
-add_definitions(-std=c++11)
+if (HAVE_STD_CPP11_FLAG)
+  add_definitions(-std=c++11)
+endif ()
 
 add_library(format format.cc)
 if (CMAKE_COMPILER_IS_GNUCXX)