Re: [Xenomai-help] Xenomai with µClibc

[Wolfgang Grandegger <wg@domain.hid>]

Jan Kiszka wrote:
> Wolfgang Grandegger wrote:
>> Jan Kiszka wrote:
>>> Perrine Martignoni wrote:
>>>>> Perrine, did you happen to configure Xenomai with "configure --host=arm
>>>>> ..."? If yes (see config.log), please use "--host=arm-linux". This
>>>>> solved all issues for me.
>>>>>
>>>>> Awaiting your feedback!
>>>> I configure Xenomai with --host=arm.
>>>> I tried to configure like this but it doesn't work :
>>>>
>>>> ./configure --build=arm-linux --host=arm-linux CC=arm-linux-gcc
>>>                       ^^^^^^^^^
>>> I guess you are not compiling Xenomai _on_ an ARM box, are you? :)
>>> Try --build=i686-linux here.
>> Or just omit it. Also CC=, CXX=, LD= ist not necessary. For PowerPC with 
>> the ELDK, I just use
>>
>>   ./configure --host=ppc-linux
>>
>> to configure Xenomai.
> 
> Can we define a common ground for this in README.INSTALL, for all archs?
> The simpler, the better.
> 
> I was heavily misled by the PPC section, because I do not cross-compile
> everyday, thus had to look up the procedure again and managed to pick
> the bad example...

I had a closer look and realized, that passing just CC, CXX and LD to 
the configure script is not enough. There should at least also AR and 
RANLIB, otherwise the corresponding host tools are used. Then I think, 
it should be equivalent to automatic tool assignment via --host.

Also note, that "--host=arm" will also work with the ELDK, because there 
are links arm-* to the tools arm-linux-*. I Perrine's configure examples 
above, arm-ar and arm-ranlib will then be used.

FYI, I have also asked the authors of the ELDK to have a closer look to 
the mentioned build problems with the uClibc versions of the ELDK.

Wolfgang.