Re: patch to add QNX NTO i386 support

[Mark Kettenis <kettenis@chello.nl>]

   From: "Kris Warkentin" <kewarken@qnx.com>
   Date: Wed, 5 Feb 2003 16:22:33 -0500

   > The i386-target was "multi-arched" a while ago, which unfortunately
   > means that your patch will need extensive modification before we can
   > add it.  Don't worry, I'll help you where needed.

   Funny you should write.  This is just what I've been working on for the past
   few hours.

Great!

   > You should probably use xm-i386.h as your xm.h file.  The other stuff
   > should either be discarded or moved to your nm.h file too.

   Okay.

   > I don't think you should try to match x86-*-nto* in configure.host;
   > the configure.tgt doesn't either.

   Probably right.  We have a chief architect here that insists that i386 is
   not correct as a generic specifier and, since our uname doesn't tell you 5
   or 686, it returns x86.  We take care of that mapping in config.guess though
   so I believe that the x86 part is redundant now.  We still build
   with --target=ntox86 though.

Hmm, looking at config.sub it seems that x86 is recognized especially
for QNX.  Since config.sub doesn't map x86, it's OK to add x86-*-nto*
if you want to allow people to build with something like
--target=x86-nto.  Just make sure you add it to configure.tgt too.

Speaking about the ntox86 alias; patches for config.sub should be sent
to config-patches@gnu.org.  Once they're added to the official CONFIG
source we'll import a new version.

Mark