As posted by R. Belmont at mameworld.info to your inquiry:
http://www.mameworld.info/ubbthreads/sh ... ber=354131
> Multiple applications (MameInteropt, LEDBlinky, CPWizard, etc.) depend on these
> files. Does anyone know if this was an intentional decision or an oversight? Thanks
> for any info.
We broke the AimTrak guns, we broke those programs, pray we don't break more things.
No, but seriously, you'll want to take a look at src/osd/modules/output. The "network" provider is preferred, although I don't know how well any of this stuff has been tested. In theory it'll now also be possible to have an output provider that just lights up the GPIO pins on some of the beefier ARM dev boards like the ODROID-C2.
Also, the new "network" provider works the same on Windows, Linux, and Mac, which the old output stuff definitely did not.