简介
INSTALL.md里面的文字
感觉cgal只需要头文件？？
似乎是的，因为我好像也没有安装它
安装可以参考这个连接，比较详细，windows 里面的安装
https://www.bilibili.com/video/BV1mU4y1p71t?from=search&seid=1430362000554699007
INSTALL.md
Since Version 5.0, CGAL is a header-only library, hence it is not needed to build it. Usage of CGAL should simply amount to:
git clone https://github.com/CGAL/cgal.git /path/to/cgal.git
cd /path/to/cgal.git/Triangulation_2/examples/Triangulation_2
mkdir -p build/debug
cd build/debug
cmake -DCMAKE_BUILD_TYPE=Debug -DCGAL_DIR=/path/to/cgal.git ../..
make
in the case of building some CGAL-provided examples in debug mode.
Note that although CGAL is a header-only library, some parts of it must link to several external libraries, such as GMP, MPFR, etc.
Building a Program Using CGAL