Checks for obsolete system-type values?

Checks for obsolete system-type values?

[Reiner Steib]

On Sun, Jan 11 2009, Reiner Steib wrote:
[ <news:871vv9pm3i.fsf@marauder.physik.uni-ulm.de> ]

> ,----[ <f1> v system-type RET ]
> | system-type is a variable defined in `src/emacs.c'.
> | Its value is gnu/linux
> | 
> | Documentation:
> | Value is symbol indicating type of operating system you are using.
> | Special values:
> |   `gnu/linux'   compiled for a GNU/Linux system.
> |   `darwin'      compiled for Darwin (GNU-Darwin, Mac OS X, ...).
> |   `macos'       compiled for Mac OS 9.
> |   `ms-dos'      compiled as an MS-DOS application.
> |   `windows-nt'  compiled as a native W32 application.
> |   `cygwin'      compiled using the Cygwin library.
> |   `vax-vms' or
> |   `axp-vms'     compiled for a (Open)VMS system.
> | Anything else indicates some sort of Unix system.
> `----

I wonder why we also check for the following symbols in Gnus:
cygwin32 win32 w32 mswindows ms-windows emx

Maybe for XEmacs or older versions of Emacs?

http://www.xemacs.org/Documentation/21.5/html/lispref_58.html#SEC763
doesn't list any of these. [1]
Neither does (info "(lispref)System Environment") [2]

Bye, Reiner.

[1]
,----[ http://www.xemacs.org/Documentation/21.5/html/lispref_58.html#SEC763 ]
|  57.3 Operating System Environment
| 
| XEmacs provides access to variables in the operating system
| environment through various functions. These variables include the
| name of the system, the user's UID, and so on.
| 
| Variable: system-type
|    The value of this variable is a symbol indicating the type of
|    operating system XEmacs is operating on. Here is a table of the
|    possible values:
| 
|     aix-v3
|         AIX.
| 
|     berkeley-unix
|         Berkeley BSD.
| 
|     dgux
|         Data General DGUX operating system.
| 
|     gnu
|         A GNU system using the GNU HURD and Mach.
| 
|     hpux
|         Hewlett-Packard HPUX operating system.
| 
|     irix
|         Silicon Graphics Irix system.
| 
|     linux
|         A GNU system using the Linux kernel.
| 
|     ms-dos
|         Microsoft MS-DOS "operating system."
| 
|     next-mach
|         NeXT Mach-based system.
| 
|     rtu
|         Masscomp RTU, UCB universe.
| 
|     unisoft-unix
|         UniSoft UniPlus.
| 
|     usg-unix-v
|         AT&T System V.
| 
|     windows-nt
|         Microsoft windows NT.
| 
|     xenix
|         SCO Xenix 386. 
| 
|     We do not wish to add new symbols to make finer distinctions
|     unless it is absolutely necessary! In fact, we hope to eliminate
|     some of these alternatives in the future. We recommend using
|     system-configuration to distinguish between different operating
|     systems.
`----

[2]
,----[ (info "(lispref)System Environment") ]
| 57.3 Operating System Environment
| =================================
| 
| XEmacs provides access to variables in the operating system environment
| through various functions.  These variables include the name of the
| system, the user's UID, and so on.
| 
|  -- Variable: system-type
|      The value of this variable is a symbol indicating the type of
|      operating system XEmacs is operating on.  Here is a table of the
|      possible values:
| 
|     `aix-v3'
|           AIX.
| 
|     `berkeley-unix'
|           Berkeley BSD.
| 
|     `dgux'
|           Data General DGUX operating system.
| 
|     `gnu'
|           A GNU system using the GNU HURD and Mach.
| 
|     `hpux'
|           Hewlett-Packard HPUX operating system.
| 
|     `irix'
|           Silicon Graphics Irix system.
| 
|     `linux'
|           A GNU system using the Linux kernel.
| 
|     `ms-dos'
|           Microsoft MS-DOS "operating system."
| 
|     `next-mach'
|           NeXT Mach-based system.
| 
|     `rtu'
|           Masscomp RTU, UCB universe.
| 
|     `unisoft-unix'
|           UniSoft UniPlus.
| 
|     `usg-unix-v'
|           AT&T System V.
| 
|     `windows-nt'
|           Microsoft windows NT.
| 
|     `xenix'
|           SCO Xenix 386.
| 
|      We do not wish to add new symbols to make finer distinctions
|      unless it is absolutely necessary!  In fact, we hope to eliminate
|      some of these alternatives in the future.  We recommend using
|      `system-configuration' to distinguish between different operating
|      systems.
`----
-- 
       ,,,
      (o o)
---ooO-(_)-Ooo---  |  PGP key available  |  http://rsteib.home.pages.de/

Re: Checks for obsolete system-type values?

[Lars Magne Ingebrigtsen]

Reiner Steib <reinersteib+gmane@imap.cc> writes:

> I wonder why we also check for the following symbols in Gnus:
> cygwin32 win32 w32 mswindows ms-windows emx

Might just be cargoculting.  I've now removed the references to these
systems. 

-- 
(domestic pets only, the antidote for overdose, milk.)
  larsi@gnus.org * Lars Magne Ingebrigtsen