See https://github.com/LibreCAD/LibreCAD_3/wiki/Building
If we want to support associative drawings, this is a good introduction to get started:
Understanding how dimensions are associated with objects
- https://github.com/fffaraz/awesome-cpp
- https://github.com/retuxx/tinyspline
- https://github.com/ebassi/graphene
- http://discourse.mcneel.com/c/opennurbs
http://cadkit.blogspot.nl/p/sample-dxf-files.html
