Support Library Requirements for GCC 7.1

[Jonathan Wakely]

On 3 May 2017 at 06:23, carl hansen wrote:
> On Tue, May 2, 2017 at 5:02 PM, Paul Smith <paul@mad-scientist.net> wrote:
>> On Tue, 2017-05-02 at 18:17 -0500, Joel Sherrill wrote:
>>> With gcc 6.3.0, we have this in our build recipe:
>>>
>>> %define mpfr_version   2.4.2
>>> %define mpc_version    0.8.1
>>> %define gmp_version    4.3.2
>>
>> Best thing to do is look at the contrib/download_prerequisites script
>> that comes with the GCC source code.
>>
>> The 7.1 version says:
>>
>>     gmp='gmp-6.1.0.tar.bz2'
>>     mpfr='mpfr-3.1.4.tar.bz2'
>>     mpc='mpc-1.0.3.tar.gz'
>>     isl='isl-0.16.1.tar.bz2'
>>
>> In general, it's better to just run that script, if possible.
> "it's better to just run that script"
> One would think.
> But 7.1 is outdated.
>
> latest gmp is 6.1.2
> latest mpfr os 3.1.5
> latest isl is 0.18

The question is not about what the latest versions are, but what
versions are required, and known to work.