Build script failed for customized godot build configuration

[djole1973]

Godot build version:
Master

OS/device including version:
VirtualBox Ubuntu 18.04.4

Issue description:
In case of the custom build when the disabled_3d is True(or disable_advanced_gui="yes") build will filed compactly for all OS docker build not only for tools(as I guess it should be)

# custom.py                                                                                                                                                                                                                                                                                                                                                                       
production="yes"                                                                                                                                                                                        
disable_3d="yes"

[Xrayez]

I would not recommend using custom.py to override compile options in this case. If you need to optimize export templates for size, then I'd suggest modifying build scripts themselves as of now. Or, you could actually modify SConstruct file within the engine source to ignore disable_3d option for editor builds.