From 924d30cf8ecdda9c9700b3c20b6192f162fd07af Mon Sep 17 00:00:00 2001
From: gaoxiang <gaoxiang@idriverplus.com>
Date: Wed, 11 Mar 2020 15:19:33 +0800
Subject: [PATCH] fix issue #77

---
 ch3/CMakeLists.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ch3/CMakeLists.txt b/ch3/CMakeLists.txt
index f8c1b2da3..72accd355 100644
--- a/ch3/CMakeLists.txt
+++ b/ch3/CMakeLists.txt
@@ -1,6 +1,8 @@
 cmake_minimum_required(VERSION 2.8)
 project(chapter3)
 
+set(CMAKE_CXX_FLAGS "-std=c++11")
+
 # 加入各子工程
 add_subdirectory(useEigen)
 add_subdirectory(useGeometry)