Steel Bank Common Lisp

On Wed, 11 Aug 2004, Joost Kremers wrote:

> hi all,
>
> my situation is this: i have an iBook running linux/ppc that i'd like to
> install sbcl on. i also have access to an iMac running OS X 10.3.4 that has
> sbcl installen through DarwinPorts. now i'm wondering whether i can
> cross-compile sbcl on OS X for linux/ppc.
>
> my first attempt wasn't very successful. sbcl building on OS X assumed it was
> building for darwin, not linux.
>
> so my questions: does sbcl always assume it is compiling for the OS it's
> running on, (it would seem so, because make-config.sh uses uname to set the
> target OS), and if so, is there a way to tell it to cross-compile for a
> different OS, not just a different architecture?

Hello,

The instructions at http://sbcl-internals.cliki.net/Build should help you 
cross-compile a SBCL for Linux/PPC. Another thing you may want to try is 
to use an OpenMCL or older SBCL Linux/PPC binary on the host itself to 
build from.

--
Brian Mastenbrook                         "God made the natural numbers;
http://www.cs.indiana.edu/~bmastenb/       all else is the work of man."
bmastenb@...                    -- Leopold Kroneker

--- Brian Mastenbrook <bmastenb@...> wrote:
> Hello,
> 
> The instructions at http://sbcl-internals.cliki.net/Build should help you 
> cross-compile a SBCL for Linux/PPC.

those are the ones i followed, but they do no seem to work for my particular
situation, because sbcl builds for Darwin when i set SBCL_ARCH to 'ppc'. the
instructions don't say how to specify the target OS, and the make-config script
even suggests that you cannot set it manually. i was just wondering if there is
something i'm overlooking.

> Another thing you may want to try is 
> to use an OpenMCL or older SBCL Linux/PPC binary on the host itself to 
> build from.

i've looked for older sbcl binaries for linux/ppc but haven't found any (yet).
i may use OpenMCL if needs be...

thanks,

Joost

-- 
Joost Kremers
Life has its moments



		
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Joost Kremers <joostkremers@...> writes:

> --- Brian Mastenbrook <bmastenb@...> wrote:
>> Hello,
>> 
>> The instructions at http://sbcl-internals.cliki.net/Build should help you 
>> cross-compile a SBCL for Linux/PPC.
>
> those are the ones i followed, but they do no seem to work for my
> particular situation, because sbcl builds for Darwin when i set
> SBCL_ARCH to 'ppc'. the instructions don't say how to specify the
> target OS, and the make-config script even suggests that you cannot
> set it manually. i was just wondering if there is something i'm
> overlooking.

Good point.  The cheap hack is, once make-config has run on both
machines, to edit local-target-features.lisp-expr on the host,
ignoring the dire warnings, to have :linux rather than :darwin (and
any possible :bsd).  (The target system's
local-target-features.lisp-expr should be correct).

Cheers,

Christophe
-- 
http://www-jcsu.jesus.cam.ac.uk/~csr21/       +44 1223 510 299/+44 7729 383 757
(set-pprint-dispatch 'number (lambda (s o) (declare (special b)) (format s b)))
(defvar b "~&Just another Lisp hacker~%")    (pprint #36rJesusCollegeCambridge)

--- Christophe Rhodes <csr21@...> wrote:
> Joost Kremers <joostkremers@...> writes:
> > those are the ones i followed, but they do no seem to work for my
> > particular situation, because sbcl builds for Darwin when i set
> > SBCL_ARCH to 'ppc'. the instructions don't say how to specify the
> > target OS, and the make-config script even suggests that you cannot
> > set it manually. i was just wondering if there is something i'm
> > overlooking.
> 
> Good point.  The cheap hack is, once make-config has run on both
> machines, to edit local-target-features.lisp-expr on the host,
> ignoring the dire warnings, to have :linux rather than :darwin (and
> any possible :bsd).  (The target system's
> local-target-features.lisp-expr should be correct).

there are also a couple of symlinks in .../sbcl-<version>/runtime which point
to architecture-dependent files, which should be changed, i think?

anyway, i decided to use openmcl instead of doing the cross-compilation, and
that worked out fine. also gives me an extra lisp-system to test my code on.
:-)

thanks,

joost



	
		
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Joost Kremers <joostkremers@...> writes:

> there are also a couple of symlinks in .../sbcl-<version>/runtime which point
> to architecture-dependent files, which should be changed, i think?

The symlinks are only used by make-target-1, which should already be
running on the target system, and so should be correct in that tree.
If you're doing this over NFS, you should run make-config on the
target system, and then everything would again be right.

> anyway, i decided to use openmcl instead of doing the
> cross-compilation, and that worked out fine. also gives me an extra
> lisp-system to test my code on.  :-)

Fair enough :-)  I'll see if I can add some more sense to the
instructions.

Cheers,

Christophe
-- 
http://www-jcsu.jesus.cam.ac.uk/~csr21/       +44 1223 510 299/+44 7729 383 757
(set-pprint-dispatch 'number (lambda (s o) (declare (special b)) (format s b)))
(defvar b "~&Just another Lisp hacker~%")    (pprint #36rJesusCollegeCambridge)

--- Christophe Rhodes <csr21@...> wrote:
> Joost Kremers <joostkremers@...> writes:
> > anyway, i decided to use openmcl instead of doing the
> > cross-compilation, and that worked out fine. also gives me an extra
> > lisp-system to test my code on.  :-)
> 
> Fair enough :-)  I'll see if I can add some more sense to the
> instructions.

if i have some spare time the next couple of days, i'll see if i can get the
cross-compile to work as per your instructions. i don't really need it, but
it'll be fun to do anyway. ;-)

joost



		
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