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Re: # of unexpected failures 768 ?
- From: Dennis Clarke <dclarke at blastwave dot org>
- To: Rainer Orth <ro at CeBiTec dot Uni-Bielefeld dot DE>
- Cc: Ian Lance Taylor <iant at google dot com>, Michael Haubenwallner <michael dot haubenwallner at salomon dot at>, gcc at gcc dot gnu dot org
- Date: Wed, 02 Nov 2011 14:29:03 -0400 (EDT)
- Subject: Re: # of unexpected failures 768 ?
- Reply-to: dclarke at blastwave dot org
> Ian Lance Taylor <iant@google.com> writes:
>
>> Michael Haubenwallner <michael.haubenwallner@salomon.at> writes:
>>
>>> But still: given that x86-solaris started with some Pentium, I just
>>> can't believe gcc can "optimize" for real 80386 CPU on Solaris now.
>>>
>>> Especially as i386 (from config.guess) is the default too.
>>
>> I'm not sure why you don't believe it. It is what I would expect.
>>
>> If we want to make this work more normally for ordinary users, I think
>> the right thing to do would be to patch config.guess to compute a better
>> value for the build system CPU on Solaris systems.
>
> Please no: alpha went this route, and the consequence is that your
> self-built gcc will generate code for the build system. This breaks
> completely if you have a heterogeneous collection of systems, and the
> GCC build system isn't the least common denominator of them. This
> single-system mindset creates unnecessary trouble in this scenario.
> GCC's configure has enough control over the default target CPU, even
> without messing with config.guess, and most other programs won't care
> about this at all.
>
>
Personally I am all for "it ain't broke, don't fix it".
Dennis
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+-------------------------+-----------------------------------+
| Dennis Clarke | Solaris and Linux and Open Source |
| dclarke@blastwave.org | Respect for open standards. |
+-------------------------+-----------------------------------+