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- * Installing GNU Emacs from a VMS install kit
-
- If you receive a VMS distribution tape containing an install kit, you can
- restore Emacs and run it immediately on any VMS system 4.2 or newer. The
- installation command file will automatically rename certain files whose
- names must vary according to the version of VMS in use.
-
- However, it is not certain we will have the install kit developed soon, so
- until that is done, you may receive an ordinary BACKUP saveset instead.
-
- * Installing GNU Emacs from an ordinary VMS BACKUP saveset
-
- If you receive a VMS distribution tape in VMS BACKUP interchange format you
- can restore Emacs and run it on VMS versions 4.2 or newer after executing a
- few commands. What you must do depends on the VMS version (one procedure
- for VMS 4.2 or 4.3; another procedure for newer VMS versions).
-
- For VMS versions 4.4 and up, make sure the file SYS$SYSTEM:RIGHTSLIST.DAT
- has WORLD:R access. Emacs reads this file to check file access.
-
- [Is this necessary? I can't find any reference to this in the source.
- -rbr, 7 Nov 92]
-
- In order to compile Emacs with the VMS C compiler, you will need a pagefile
- quota of around 22000 pages, plus enough swap space to handle that. (This
- was in VMS 5.1-1, with 5 meg of physical memory.) See HELP SYSGEN CREATE
- and HELP SYSGEN INSTALL for more information.
-
- Choose a directory to restore to, say DEV:[LIB]. Do:
-
- $ mount/foreign mta0:
- $ backup/log mta0: dev:[lib...]
-
- Now, if you are using VMS version 4.4 or later, set your default to the
- directory DEV:[LIB.EMACS] and run the command file
- DEV:[LIB.EMACS.VMS]ALLRENAME.COM:
-
- $ set default dev:[lib.emacs]
- $ @[.vms]allrename [...] "_" "-"
-
- This renames all files in the Emacs distribution from their old-VMS names
- (containing `_' characters) to their new-VMS names (containing `-' instead).
-
- Now execute the command file DEV:[LIB.EMACS.VMS]EMACS.COM. This defines a
- command EMACS that runs a suspendable permanent Emacs. To fully install
- Emacs, you must arrange for users to run this file on login, or arrange for
- this file to be run when the system boots.
-
- The distribution contains an Emacs executable in DEV:[LIB.EMACS]EMACS.EXE.
- It uses DEV:[LIB.EMACS]EMACS.DUMP every time it runs. The EMACS.EXE has
- been linked with the non-sharable C library, so it should run on any VMS
- V4.4+ system, whether or not the C compiler exists. The .OBJ files are all
- there, so you can relink with /DEBUG if you want to have fun.
-
- A few C source files contain compilation conditionals that depend on the
- version of VMS. We have compiled these files specially for VMS version
- 4.2 (or 4.3) in object files with extension .JBO. So to run on VMS 4.2,
- rename all the .JBO files to .OBJ, then link and build Emacs as described
- in DEV:[LIB.EMACS.VMS]VMSBUILD.
-
- $ set default [.src]
- $ rename *.jbo *.obj
- $ set default [-.vms]
- $ @link
- $ @build
- $ rename temacs.exe [-]emacs.exe
- $ rename temacs.dump [-]emacs.dump
-
- To be clean, you should also edit the file [.SRC]CONFIG.H to #include the
- file [.s]VMS4_2.H instead of [.s]VMS-4-4.H. Then the proper conditionals
- will be activated if you ever recompile.
-
- * Moving a Unix distribution to VMS.
-
- Moving a Unix distribution to VMS is mostly a matter of transferring the
- files to the VMS system, but with old versions of VMS (prior to 4.4) it is a
- little more complicated because some of the file names used on Unix are not
- supported by VMS. Every `-' in a Unix file name must be changed to a `_' on
- VMS. (In VMS versions 4.4 and up, this is not necessary, since `-' is
- allowed in file names.)
-
- A few other changes must be made regardless of the version of VMS:
-
- 1) Copy the file [.SRC]VMSPATHS.H to [.SRC]PATHS.H, replacing any existing
- file PATHS.H in that directory.
-
- 2) Delete any file [.SRC]CONFIG.H and replace it with a copy of
- CONFIG.H_IN. Then edit this file so it specifies `[.m]vax.h' as the
- second include file and for the first include file one of
- `[.s]vms4-0.h', `[.s]vms4-2.h' or `[.s]vms4-4.h'. (Use the highest
- version not greater than the VMS version you are running. For VMS
- versions prior to 4.4, the `-' characters must be replaced with `_'.)
-
- You can now compile, link, build and install Emacs as described in
- [.VMS]VMSBUILD..
-
- * Moving a VMS distribution to Unix.
-
- Delete all .OBJ files, and PATHS.H and CONFIG.H. Then copy the remaining
- files, changing each `_' in a file name to `-`. Unix will allow filenames
- with `_' but Emacs will not work with them!
-
- Names which on VMS end in a period (have a null extension) should have no
- period on Unix. Thus, "YMAKEFILE." becomes "ymakefile".
-
- VMS file names are case-insensitive. On Unix, case is significant. Most of
- the file names must be in lower case or they will not work. There are only
- a few exceptions:
-
- 1) CHANGELOG. becomes ChangeLog
- 2) MAKEFILE. becomes Makefile
- 3) TAGS. becomes TAGS
- 4) Files of English text with null extensions keep their names in upper
- case. For example, README. becomes README and [.ETC]GNU. becomes GNU
-