brl.system: Notify(), Confirm(), ... not opening dialogues on Linux

[GWRon]

The current implementation of brl.mod/system.mod does not open graphical dialogues on Linux. So when run from a graphical application it only outputs to the console windows. While this behaviour is okay for a console app, this is not very useful for the graphical ones.

To avoid this, one could replace

	Method Notify( text$,serious )
		WriteStdout text+"~r~n"
	End Method

with

	Method Notify( text$,serious )
		system_ "xmessage -center ~q"+text+"~q"
	End Method

and the likes.

I assume this is ok as long as it is run in an graphical environment. As it already utilizes "X11/..." things I am not sure if this creates trouble.

Also it might be a good thing to utilize:
https://sourceforge.net/projects/tinyfiledialogs/
which is a "small" c-project which wraps calls to "xmessage" (or another available command line tool) so we would not need to take care of what is installed. It also falls back to terminal-output if nothing "graphically" is available.

[GWRon]

There is a pull request waiting for this issue.
Why is this not accepted? because of a external program not available on all systems? (aka relying on "X").

[GWRon]

bump.