关于安装ceres库时遇到的一些问题
以前一直用的是ubuntu16.04，安装系统时，自带会安装一些库；现在换成了纯净版的debian，安装ceres需要提前安装一些依赖库，需要哪些依赖库可以查看ceres源码中的.cmake文件，这个文件记录了需要的依赖库和cmake时相关的信息输出，可以通过.cmake文件查找相关的问题。
一、更新源（从以下镜像中任选一个）
1. 163镜像站：
deb http://mirrors.163.com/debian/ stretch main non-free contrib
deb http://mirrors.163.com/debian/ stretch-updates main non-free contrib
deb http://mirrors.163.com/debian/ stretch-backports main non-free contrib
deb-src http://mirrors.163.com/debian/ stretch main non-free contrib
deb-src http://mirrors.163.com/debian/ stretch-updates main non-free contrib
deb-src http://mirrors.163.com/debian/ stretch-backports main non-free contrib
deb http://mirrors.163.com/debian-security/ stretch/updates main non-free contrib
deb-src http://mirrors.163.com/debian-security/ stretch/updates main non-free contrib
2. 中科大镜像站
deb https://mirrors.ustc.edu.cn/debian/ stretch main contrib non-free
deb-src https://mirrors.ustc.edu.cn/debian/ stretch main contrib non-free
deb https://mirrors.ustc.edu.cn/debian/ stretch-updates main contrib non-free
deb-src https://mirrors.ustc.edu.cn/debian/ stretch-updates main contrib non-free
deb https://mirrors.ustc.edu.cn/debian/ stretch-backports main contrib non-free
deb-src https://mirrors.ustc.edu.cn/debian/ stretch-backports main contrib non-free
deb https://mirrors.ustc.edu.cn/debian-security/ stretch/updates main contrib non-free
deb-src https://mirrors.ustc.edu.cn/debian-security/ stretch/updates main contrib non-free
3. 阿里云镜像站
deb http://mirrors.aliyun.com/debian/ stretch main non-free contrib
deb-src http://mirrors.aliyun.com/debian/ stretch main non-free contrib
deb http://mirrors.aliyun.com/debian-security stretch/updates main
deb-src http://mirrors.aliyun.com/debian-security stretch/updates main
deb http://mirrors.aliyun.com/debian/ stretch-updates main non-free contrib
deb-src http://mirrors.aliyun.com/debian/ stretch-updates main non-free contrib
deb http://mirrors.aliyun.com/debian/ stretch-backports main non-free contrib
deb-src http://mirrors.aliyun.com/debian/ stretch-backports main non-free contrib
4. 华为镜像站
deb https://mirrors.huaweicloud.com/debian/ stretch main contrib non-free
deb-src https://mirrors.huaweicloud.com/debian/ stretch main contrib non-free
deb https://mirrors.huaweicloud.com/debian/ stretch-updates main contrib non-free
deb-src https://mirrors.huaweicloud.com/debian/ stretch-updates main contrib non-free
deb https://mirrors.huaweicloud.com/debian/ stretch-backports main contrib non-free
deb-src https://mirrors.huaweicloud.com/debian/ stretch-backports main contrib non-free
5. 清华大学镜像站
deb https://mirrors.tuna.tsinghua.edu.cn/debian/ stretch main contrib non-free
deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ stretch main contrib non-free
deb https://mirrors.tuna.tsinghua.edu.cn/debian/ stretch-updates main contrib non-free
deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ stretch-updates main contrib non-free
deb https://mirrors.tuna.tsinghua.edu.cn/debian/ stretch-backports main contrib non-free
deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ stretch-backports main contrib non-free
deb https://mirrors.tuna.tsinghua.edu.cn/debian-security/ stretch/updates main contrib non-free
deb-src https://mirrors.tuna.tsinghua.edu.cn/debian-security/ stretch/updates main contrib non-free
6. 兰州大学镜像站
deb http://mirror.lzu.edu.cn/debian stable main contrib non-free
deb-src http://mirror.lzu.edu.cn/debian stable main contrib non-free
deb http://mirror.lzu.edu.cn/debian stable-updates main contrib non-free
deb-src http://mirror.lzu.edu.cn/debian stable-updates main contrib non-free
deb http://mirror.lzu.edu.cn/debian/ stretch-backports main contrib non-free
deb-src http://mirror.lzu.edu.cn/debian/ stretch-backports main contrib non-free
deb http://mirror.lzu.edu.cn/debian-security/ stretch/updates main contrib non-free
deb-src http://mirror.lzu.edu.cn/debian-security/ stretch/updates main contrib non-free
7. 上海交大镜像站
deb https://mirror.sjtu.edu.cn/debian/ stretch main contrib non-free
deb-src https://mirror.sjtu.edu.cn/debian/ stretch main contrib non-free
deb https://mirror.sjtu.edu.cn/debian/ stretch-updates main contrib non-free
deb-src https://mirror.sjtu.edu.cn/debian/ stretch-updates main contrib non-free
deb https://mirror.sjtu.edu.cn/debian/ stretch-backports main contrib non-free
deb-src https://mirror.sjtu.edu.cn/debian/ stretch-backports main contrib non-free
deb https://mirror.sjtu.edu.cn/debian-security/ stretch/updates main contrib non-free
deb-src https://mirror.sjtu.edu.cn/debian-security/ stretch/updates main contrib non-free
官方全球镜像站列表地址https://www.debian.org/mirror/list
二、纯净版的debian编译安装ceres的步骤：
1. 安装cmake
sudo apt-get install cmake
2. 安装google-glog + gflags
sudo apt-get install libgoogle-glog-dev
3. 安装BLAS & LAPACK
sudo apt-get install libatlas-base-dev
4 安装Eigen3
sudo apt-get install libeigen3-dev
也可以下载对应的源码安装：http://eigen.tuxfamily.org/index.php?title=Main_Page
5 安装SuiteSparse和CXSparse
sudo apt-get install libsuitesparse-dev
三、编译ceres
mkdir build
cd build
cmake ..
make -j4
make install
