Re: Configure issues

[Karim BELABAS <Karim.Belabas@math.u-psud.fr>]

On Fri, 21 Jun 2002, Igor Schein wrote:
> In latest CVS, config/objdir command outputs 'Osolaris-sparcv9' on
> Solaris 2.7.  So if I choose, for example, 'none' instead of 'sparcv9'
> when running Configure, make command don't work in top level
> directory, since it's looking to cd to Osolaris-sparcv9.  This all is
> a consequence of latest changes to Configure, after which top-level
> Makefile is not a link to a corresponding Makefile in objdir anymore.
> So I'm curious, what are the plans for Configure?  Will the build from
> top-level directory be obsoleted?  If, like in my case, I wanna have
> 2 objdirs, one for optimized kernel and one for portable kernel,
> it's not consistent that I can build one from top level, while having
> to cd to the objdir for the other.

On Sat, 22 Jun 2002, Bill Allombert wrote:
> On Fri, Jun 21, 2002 at 08:42:17PM +0200, Bill Allombert wrote:
> > What I propose is to add an overridable Make variable ODIR that default to
> > `config/objdir`, so you can run
> >
> > make gp "ARCHOS=none"
>
> Well this is not useful, since you can already do
> make gp -C Onone
> and this is easier to type using shell completion.

This is GNU make specific, isn't it ?

In any case, we should append -nokernel (or somesuch) to the object dir name
if architecture 'none' was specified (O$osname-$arch-nokernel). I agree
that O$osname-none is a bad idea: no assembler kernel was used but the binary
is still $arch-specific, whatever $arch was.

For consistency, we could have a 'nokernel' (= 'gp-nokernel') target in top
Makefile (and possibly 'dbg-nokernel', 'prf-nokernel'), but it's not that
important. [ OK, I can type 'make nokernel' faster than 'cd
O<TAB><TAB><RET>make', but I'd hardly ever do it ]

But it'd be nice to be able to build portable kernels on different archs, for
the same operating system.

Would that be OK ?

    Karim.
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Karim Belabas                    Tel: (+33) (0)1 69 15 57 48
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Université Paris-Sud             Email: Karim.Belabas@math.u-psud.fr
F-91405 Orsay (France)           http://www.math.u-psud.fr/~belabas/
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