I've put some time into it....
http://gambaswiki.org/wiki/install/ghostbsd
Notes...
installing dependency 'qt5' installs a lot of stuff , too much i think, 200mb of docs 120mb of examples etc.
I need to remove it and install the individual dependencies only.
gonna take some time though as i only have it on VM and it's not quick.
qt5 installs things like llvm and postgresql so i ill have to add thing like that that may be missing, gonn be a looong process but probably a background one
Some of the changes i made to make it compatible (minor makefile adjustments) may be added to gambas so my fork may become obsolete. will update here and wiki upon progress
Bruce