From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Mon, 17 Oct 2005 22:10:25 +0200
From: Jan Kiszka <kiszka@domain.hid>
MIME-Version: 1.0
Subject: Re: [Xenomai-help] compiling xenomai on x86_64
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To: Philippe Gerum <rpm@xenomai.org>
Cc: xenomai@xenomai.org

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Philippe Gerum wrote:
> Heikki Lindholm wrote:
> 
>> Jan Kiszka kirjoitti:
>>
>>> Heikki Lindholm wrote:
>>>
>>>> Jan Kiszka kirjoitti:
>>>>
>>>>
>>>>> Hi,
>>>>>
>>>>> I'm dumb x86 user who unfortunately just seem to have tumbled in the
>>>>> cross-compilation trap: I'm trying to generate i586 code on a fancy
>>>>> new
>>>>> and fast x86_64 compilation host. I got the kernel compiled with
>>>>> ARCH=i386, using only the pre-installed compiler (i.e. no dedicated
>>>>> cross tool chain), but I failed to compile xenomai against that kernel
>>>>> in the following. Which magic switch do I have to apply and where?
>>>>
>>>>
>>>>
>>>>
>>>> As dumb a guess: -m32 compiler switch?
>>>>
>>>
>>>
>>> Yes, I know, that would help. But where to feed this argument into the
>>> build system?
>>
>>
>>
>> I would try makefile (and perhaps config/kconfig/Makefile*) and
>> command line 'CC="gcc -m32" CXX="gcc -m32" make menuconfig/install' to
>> be sure.
>>
> 
> You should be able to do that just by reconfiguring:
> 
> cd build && make reconfig CC="gcc -m32"
> 

... would have been too easy: :-/

[after "make menuconfig ARCH=i386"]
gcchost2:/tmp/xenomai/build # make reconfig CC="gcc -m32"
make[1]: Entering directory `/tmp/xenomai/build'
configure: error: unrecognized option: -m32
Try `/tmp/xenomai/configure --help' for more information.
make[1]: *** [config.status] Error 1
make[1]: Leaving directory `/tmp/xenomai/build'
make: *** [reconfig] Error 2

Jan

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