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Re: [PATCH]: bump minimum MPFR version, (includes some fortranbits)
- From: Adrian Bunk <bunk at stusta dot de>
- To: Tobias SchlÃter <Tobias dot Schlueter at physik dot uni-muenchen dot de>
- Cc: Markus Milleder <markus dot milleder at generali dot at>, fortran at gcc dot gnu dot org, gcc at gcc dot gnu dot org, gcc-patches at gcc dot gnu dot org, "Kaveh R. Ghazi" <ghazi at caip dot rutgers dot edu>, vincent+gcc at vinc17 dot org
- Date: Tue, 14 Oct 2008 15:56:17 +0300
- Subject: Re: [PATCH]: bump minimum MPFR version, (includes some fortranbits)
- References: <OFC84C70D0.DFCC377F-ONC12574E2.0042BFBE-C12574E2.00441902@AT.TOP.COM> <48F49279.3000305@physik.uni-muenchen.de>
On Tue, Oct 14, 2008 at 02:37:13PM +0200, Tobias SchlÃter wrote:
> Markus Milleder wrote:
>> Adrian Bunk schrieb am 13.10.2008 17:41:15:
>>> E.g. the next stable release of Debian will likely ship with 2.3.1 .
>>> So in this specific case fulfilling a 2.3.1 requirement would be easy,
>>> while a 2.3.2 requirement would make it much harder to build gcc 4.4 .
>>>
>> Much harder ?
>>
>> I don't think anybody who tries to build GCC from source will have any
>> problem building MPFR first.
>
> They don't even need to do this, as mpfr can be built in-tree. It then
> also won't interfere with a system-wide mpfr.
>
>> I can see how a distribution will probably want to have at least the
>> MPFR version GCC demands, which would force an MPFR upgrade to
>> accompany a GCC 4.4 package.
>>
>>> And upgrading from 2.3.1 to let's say 3.0.0 might be a bad choice if
>>> the new version contains regressions.
>
> This is moot because for the reason given above, these hypothetical
> regressions are restricted to gcc if the person building gcc is careful.
"careful" = uses an undocumented trick ?
Or where at http://gcc.gnu.org/install/ is this documented?
> Cheers,
> - Tobi
cu
Adrian
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