Right now the projects use CodeLite, which is a cross-platform app, but the project files aren't the easiest to work with on platforms other than the OS it came from.
The one I usually jump to is CMake:
http://www.cmake.org/
This will let you generate Makefiles, project files, etc. CodeLite actually has support for this if I'm not mistaken, so you should be able to keep working from there without any extra effort beyond setting it up the first time.
You probably came across this when looking at SFML2; definitely take a look at it. It's nice to have in the event that you switch development environments, or even operating systems! (Also broadens your developer audience, particularly those who might want to package OpenHexagon in something like a Linux distro.)