Re: [Xenomai-help] compiling xenomai on x86_64

[Heikki Lindholm <holindho@domain.hid>]

Gilles Chanteperdrix kirjoitti:
> Philippe Gerum wrote:
>  > Probably grabbing more stuff from the kernel cflags into XENO_ARCH_FLAGS (e.g. 
>  > -m[0-9]* to start with). Gilles, would this be ok?
> 
> Probably, but last time I checked that, the ppc-compiled version of the
> dummy program used at configuration time to extract the arch flags from
> Kbuild was not work here, because of ahem, quoting issues. There are
> some -m arguments we do not want (such as for example the -msoft-float
> used in ppc kernel space).

Hmm. Does this also mean that the compiler isn't taken from kernel 
config at all? I tried compiling Xeno on a ppc box the other day, where 
the kernel had already been compiled by gcc-3.4 on another host. The box 
also had gcc-3.4, but 3.3 as the default (old debian.) Xenomai config 
seemed to pick the wrong compiler, because modules complained at load 
time of 3.3 vs. 3.4 conflict. The kernel compile host's default was 
gcc-4.0, so it was also forced to use gcc-3.4.

-- Heikki Lindholm