stern@bnl.UUCP (eric) (05/21/85)
I would like to attempt to port GNU emacs to run under
VMS. The C library under VMS provides pretty good UNIX
emulation so there are only a few system dependent things
I need to worry about.
1) Terminal IO. Under 4.2, emacs uses SIGIO driven character
input. I suppose it also runs in RAW mode. It is
reasonably trivial to do the same kind of thing under
VMS, but the mechanism of implementing is different. So,
what I need is find all the places that emacs does ioctl's,
fctrl's and read's from the terminal and change them to
the approprate thing under VMS. Can anyone give me any
clues as to where in the code this sort of thing gets done?
Is it just one place, or is all over?
2) Signals. The signal routines supplied with VMS C operate
more like Version 7, than the 4.2 specific signal routines.
What signals does emacs use, and how. Does it use the 4.2
specific signals, or does it use the V7 compatability
signal functions?
3) Stat. Stat is not supported under VMS, so if emacs uses
stat, I will have to arrange a work around. Where does
emacs use stat, and what for?
Well that about covers my questions. Ordinary file IO, and standard
IO work the same under VMS so that should be no problem. Have I
missed anything else that would be important?
Of course, if I succeed, I will arrange some way to distribute the
result free.
Flames about VMS will be ignored, since I know more about it
that you do.
Thanks for your patience,
Eric G. Stern
stern@bnl.arpa
...!philabs!sbcs!bnl!stern