aix cross(?)compiler

[Marc Glisse]

On Sat, 21 Jan 2012, Paul Smith wrote:

> On Wed, 2011-12-14 at 09:45 +0000, Jonathan Wakely wrote:
>> 2011/12/14 JĂŞdrzej Dudkiewicz:
>>>
>>> 1) Am I building everything the right way,
>>
>> The process is much simpler if you let GCC build the GMP, MPFR and MPC
>> libs, instead of installing them separately. See
>> http://advogato.org/person/redi/diary/253.html
>
> Unfortunately this method is broken, at least in GCC 4.6.2.

It advises to use ./contrib/download_prerequisites, which doesn't download 
the latest versions of gmp/mpfr/mpc but versions that are known to work.

> I filed a bug (with patch):
>    http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51935

Dup of 50461.
A good patch would detect the appropriate path depending on the version of 
mpfr.
If we were to require mpfr-3.1+ for in-tree builds, at least 
download_prerequisites and the documentation should be updated.

-- 
Marc Glisse