[RFC] Quad-float support in Fortran

[Angelo Graziosi]

Il 28/10/2010 15.23, Tobias Burnus ha scritto:
> On 10/28/2010 03:16 PM, Angelo Graziosi wrote:
>> Il 28/10/2010 15.06, FX ha scritto:
>>> This is right. You also need to configure with --enable-maintainer-mode
>> Hmm... out of curiosity, why? I do always build in a cleaned rsynced
>> tree...
>>
>> Can I use gcc-4.3.4 (the current installed on Cygwin) or I need 4.5,
>> 4.6 series?
>
> By default building GCC does not regenerate, e.g., "configure" from
> "configure.ac" or the files under libgfortran/generated/ from
> libgfortran/m4 -- even if they changed. Only if you build with
> --enable-maintainer-mode, GCC does.
>
> The general GCC policy is to post only the patch itself and exclude the
> generated files to make reviewing easier. For gfortran patches, they
> were often included on the basis that many users tests the patches (as
> this thread shows) and as --enable-maintainer-mode requires very
> specific versions of the autotools, which are usually not installed. For
> GCC patches, reviewers will complain if you include the generated files;
> a reviewer typically also does not apply and test a patch but only looks
> at the patch. Thus, including the generated files just makes the review
> process harder.

Now I have understood... but when I add '--enable-maintainer-mode', it 
fails...

[...]
configure.ac:2: error: Please use exactly Autoconf 2.64 instead of 2.67.
[...]

...and I haven't Autoconf 2.64 :(

It seems I have to wait quad in trunk to test, right?

Ciao,
Angelo.