Re: error about build toolchain with crosstool-ng-1.8.0

[Arnaud Lacombe <lacombar at gmail dot com>]

Hi,

On Fri, Sep 3, 2010 at 1:04 AM, loody <miloody@gmail.com> wrote:
> hi:
>
> 2010/9/3 Arnaud Lacombe <lacombar@gmail.com>:
>> Hi,
>>
>> On Thu, Sep 2, 2010 at 11:02 PM, loody <miloody@gmail.com> wrote:
>>>> I'm on the move until next Tuesday (at least), so will most probably not be able to reply
>>>> (internet at the hotel is expensive here :-( ).
>>> I attach the configs and logs of not successfully compiling.
>> build.log.mipsel.uC30.1:
>> I guess your uClibc configuration is missing UCLIBC_HAS_FLOATS.
>>
>> build.log.mipsel.uC30.2:
>> cf. http://lists.uclibc.org/pipermail/uclibc-cvs/2006-April/022762.html
>>
>> build.log.x86.uC30.1:
>> I guess your uClibc configuration is missing UCLIBC_HAS_FENV.
> I will add your suggestion and report the result.
> BTW, if I remember correctly, crossng will first ask me to fill the
> default uClibc config location then it will replace by the default
> one.
> if so, why should I give the place at first time?
>
to be more precise, you give ct-ng how you want uClibc, then ct-ng
amends it features-wise with various things.

<personal-opinion>this really _sucks_.<personal-opinion/>

Fixing this cleanly would leads to a more clever uClibc build script,
tighter communication between the C library configuration and the
compiler, and eventually structural changes in ct-ng.

While there, gcc can definitively build without UCLIBC_HAS_FENV,
however, it requires SUSV[34] legacy stuff. This dependency may in
turn vary depending on versions...

 - Arnaud

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