POSTGIS: 3.1 r15475 http://postgis.net/source
CGAL VERSION: 4.11 http://www.cgal.org
Boost VERSION: 1.59.0 http://www.boost.org
GMP VERSION: 5.1.2 https://gmplib.org
MPFR VERSION: 3.1.2 http://www.mpfr.org
PROTOBUF VERSION: 3.2.0 https://github.com/google/protobuf
PROTOBUF-C VERSION: 1.2.1 https://github.com/protobuf-c/protobuf-c
GEOS VERSION: 3.9.1 https://trac.osgeo.org/geos
GDAL VERSION: 3.2.3 https://gdal.org/download.html#current-releases
PROJ VERSION: 7.1.1 https://proj.org/download.html#current-release
LIBICONV VERSION: 1.15 http://ftp.gnu.org/gnu/libiconv/libiconv-.tar.gz
CGAL VERSION: 4.11 http://www.cgal.org
BOOST VERSION: 1.59.0 http://www.boost.org
SFCGAL VERSION: 1.3.9 http://www.sfcgal.org https://github.com/Oslandia/SFCGAL
