Gnome interface status report

Committed yet?  I don't seem to get these with cvs update ...

Oops.  Done now.

Re X11/gnome: Last week I suggested that eventually we might have
something like

	unix/...
	unix/X11	=> libRX11.so
	unix/gnome	=> libRgnome.so
maybe also
	unix/kde
???

and at startup do

	LoadSharedLib("libR$GUI.so")

My impression was that the comments we received were all positive.  So,
maybe we should keep this in mind.

Even without the GUI DLL, the above organization would be a lot cleaner.
How easy would it be to accomplish that?  It seems that we can have

	*sock*
	dynload.c
	hpdlfcn.c

in common, and maybe we only need to take waitforActivity() out from
system.c?

I like the idea of organising the files this way.  The shared library thing
could be a bit tricky, but I guess it could be done.

devPS.c 
devPicTeX.c 
dynload.c 
edit.c 
Rsock.c 
sock.c 

are already used directly from the unix directory by the Gnome interface.
We could easily split up system.c into a couple of files.  This would give
us:

unix
|-system.c, devPS.c, ..., sock.c
|-X11
| |-system-X11.c, edit.c, devX11.c, ...
|-gnome
| |-system-gnome.c, edit.c, devGnome.c, ...

Doing this as a source split (rather than turning things into shared
libraries) would mean putting main into system-X11.c and system-gnome.c,
but would make maintaining the source for the stuff that's share between
both interfaces much simpler.

Lyndon
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