From 84a4ef7cd889bcf54e0ef1f0bf5ee57e5934caa7 Mon Sep 17 00:00:00 2001
From: Daniel Scharrer <daniel@constexpr.org>
Date: Tue, 10 Jul 2012 00:14:44 +0200
Subject: [PATCH] Don't use -std=c++11 with older Boost versions

C++11 mode will cause errors when using Boost < 1.48.
---
 CMakeLists.txt | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index c709d40..c6ac65f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -55,7 +55,11 @@ list(APPEND LIBRARIES "${Boost_LIBRARIES}")
 link_directories("${Boost_LIBRARY_DIRS}")
 include_directories(SYSTEM "${Boost_INCLUDE_DIR}")
 
-add_cxxflag("-std=c++11")
+if(${Boost_VERSION} LESS 104800)
+	# Older Boost versions don't work with C++11
+else()
+	add_cxxflag("-std=c++11")
+endif()
 
 add_cxxflag("-Wall")
 add_cxxflag("-Wextra")