Re: [RFC] getting rid of the config.guess/sub problem when bootstrapping new ports/systems

[Eric Blake]

On 05/20/2013 09:37 AM, Wookey wrote:
> +++ Eric Blake [2013-05-20 09:11 -0600]:
>> On 05/20/2013 09:01 AM, Paul Wise wrote:
>>> On Mon, 2013-05-20 at 08:37 -0600, Eric Blake wrote:
>>>
>>>> I would MUCH rather see us honor a CONFIG_GUESS and CONFIG_SUB
>>>> environment variable, rather than baking in a PATH search.  This topic
>>>> has come up in the past, where I made the same request back then.
>>>
>>> The patch does both and both are needed AFAICT.
>>
>> I disagree.  Env-var override should be sufficient, without needing any
>> PATH probing.
> 
> The problem with this in the context of distro buildds was explained
> in this sub-part of the thread from Oct last year:
> http://article.gmane.org/gmane.comp.sysutils.autoconf.general/14756
> 
> ENV VARS are carefully filtered out of buildd environments in order to
> get clean builds. We really want a mechanism where the distro default
> build just looks in the right (system) place, unless you ask for
> something different.

The distro default build system should SET such an env-var.  Problem
solved, no path search needed.  Clean builds are a product of using the
same environment, and that can include SETTING useful variables, rather
than scrubbing them.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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