remove OS part of --target=xxx (Re: [PATCH] remove target_os)

[Robert Millan <rmh@aybabtu.com>]

On Tue, Jan 27, 2009 at 06:33:47PM +0100, Javier Martín wrote:
> 
> So you propose --target to be reused like this (a PS3 building GRUB2 for
> an amd64 BIOS PC with Linux) :
> ./configure --build=ppc64-linux --host=x86_64-linux-gnu --target=i686-pc
>               ^--compiling system ^--tools system         ^--boot arch

I'm not proposing to change the way --target is used, only describing what
its argument is supposed to mean, based on a comment from configure.ac.

I agree that having to specify an OS for --target in command-line is odd
too, but it's a different problem.  Maybe we could ask the config.sub
maintainer for a dummy value, such as "unknown" or so (I think Glibc had
a --host for standalone -no OS- arm builds, perhaps we could use the
same).

> I think we already have a better-geared switch for that (--with-platform
> it is?), which is currently used to distinguish between BIOS and EFI
> boot code on both x86 and x86-64.

--with-platform is an override for the default platform that is otherwise
derived from target_vendor, AFAIK.

-- 
Robert Millan

  The DRM opt-in fallacy: "Your data belongs to us. We will decide when (and
  how) you may access your data; but nobody's threatening your freedom: we
  still allow you to remove your data and not access it at all."