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From: pcg@cs.aber.ac.uk (Piercarlo Grandi)
Newsgroups: comp.sources.wanted,gnu.misc.discuss,comp.sys.ibm.pc
Subject: Re: Gcc-386 under MSDOS? 8-)
Message-ID: <PCG.90Jun27174632@odin.cs.aber.ac.uk>
Date: 27 Jun 90 16:46:32 GMT
References: <641@venice.SEDD.TRW.COM>
Sender: pcg@aber-cs.UUCP
Organization: Coleg Prifysgol Cymru
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In-reply-to: ries@venice.SEDD.TRW.COM's message of 26 Jun 90 21:14:03 GMT
Posting-Front-End: GNU Emacs 18.55.4 of Thu Nov 23 1989 on athene (berkeley-unix)


In article <641@venice.SEDD.TRW.COM> ries@venice.SEDD.TRW.COM (Marc Ries) writes:

   I know there is a 386/UNIX version from wfs@sally.utexas.edu, but:
   Has anyone ever ported GNU's gcc-386 compiler to run under MSDOS?

This is *impossible*, or at least very difficult.

   Heaven forbid, if they have, does anyone have the executables, etc.?

You can file transfer from from the System V/386 archive on
sequent.kent.edu, but they miss the one fundamental thing.

   [stop laughing 8-)]

I am not laughing. Tha above contradictory statements are because some
quite brilliant people in a nordic university run all the GNU things on
a 386 *almost* under DOS, even if it impossible, because they have
written a System V emulator that runs under DOS in protected mode. In
this way you can run virtually all System V 386 binaries under the
emulator under DOS, including the GNu compilers, by saying something
like 'xv gcc' (or even, apparently, 'xv emacs').

I think that they could either publish their 'xv' command, or somebody
else can rewrite it -- I think that it is not difficult, after all
emulating the SVID convincingly enough under DOS is not difficult, and
there are some examples of how to set up protected mode applications
under DOS, by tweaking the memory maps.

--
Piercarlo "Peter" Grandi           | ARPA: pcg%cs.aber.ac.uk@nsfnet-relay.ac.uk
Dept of CS, UCW Aberystwyth        | UUCP: ...!mcsun!ukc!aber-cs!pcg
Penglais, Aberystwyth SY23 3BZ, UK | INET: pcg@cs.aber.ac.uk