List,
the 3.9-4 VM now runs on the cygwin platform just long enough for taking a first screen shot (attached).
The vm-display-X11 module is linked together with vm.a, same with vm-sound-null, and a handsome sqUnixNoMozilla.a ;-)
No other module or plugin is currently working. The VM terminates itself after some mouse+display activity - it does not crash, just stops - perhaps it gets bored because no externalized primitive does anything.
The dlopen and linking facilities of cygwin have about the level functionally which was common at ASM/360 times, it is allowed to do everything manually. It will not be easy to reference plugins with dlopen.
Now I must learn more on how to create makefiles from config files, is there an entry level doc and / or tutorial that someone here would recommend?
/Klaus
P.S. Thank you very much Bert and Wolfgang for your encouraging questions and suggestions, without you we still would be confused by gcc -shared and by libtool -dlopen self.