- Update to 5.2.1
* See https://github.com/CGAL/cgal/pulls?utf8=%E2%9C%93&q=label%3AMerged_in_5.2.1
- Update to 5.2.0
* Fixed multiple code execution vulnerabilities:
boo#1184975 ( CVE-2020-35636 ), boo#1184977 ( CVE-2020-28636 ),
boo#1184973 ( CVE-2020-28601 ) and boo#1184978 ( CVE-2020-35628 )
* For full list of other changes, see:
https://www.cgal.org/2020/12/22/cgal52/

- Update to 5.1.1:
See https://github.com/CGAL/cgal/pulls?utf8=%E2%9C%93&q=label%3AMerged_in_5.1.1

- update to version 5.1
Many news, see https://github.com/CGAL/cgal/releases/tag/v5.1

- Update to version 5.0.2
* various small bugfixes
- Update to version 5.0.1
* fixes a performance regression in 3D Triangulations, when using
the Parallel_tag
- Update to version 5.0.0
* requires g++ 6.3 or later
* requires boost 1.57.0 or later
* new Polygonal Surface Reconstruction
* See https://www.cgal.org/2019/11/08/cgal50/ for details
- manually disable header-only build

- Fix build on x86_64 and some other, do not force -fPIE, -fPIC would be
needed but is the default already.