Re: [PATCH 1/2] aclocal: multiple local m4 macro dirs with AC_CONFIG_MACRO_DIR

[Stefano Lattarini]

Hello autoconfers.

On 07/04/2012 06:55 PM, Stefano Lattarini wrote:
> Hi Eric.
> 
> On 07/04/2012 06:42 PM, Eric Blake wrote:
>> On 07/04/2012 09:24 AM, Stefano Lattarini wrote:
>>> It can be done either passing several arguments to a single invocation:
>>>
>>>     AC_CONFIG_MACRO_DIR([dir1 dir2])
>>
>> I would recommend against this,
>>
>>>
>>> or issuing more invocations:
>>>
>>>     AC_CONFIG_MACRO_DIR([dir1])
>>>     AC_CONFIG_MACRO_DIR([dir2])
>>
>> and instead favor this approach only.
>>
>> My plan for autoconf is to implement AC_CONFIG_MACRO_DIRS, which can be
>> invoked multiple times and also takes a whitespace-separated list in a
>> single call, but which will basically then call AC_CONFIG_MACRO_DIR once
>> per unique entry (that is, AC_CONFIG_MACRO_DIRS will be smart enough to
>> filter out duplicates).
>>
> And also to normalize whitespace messes in usages like this, I guess:
> 
>    AC_CONFIG_MACRO_DIRS([foo  bar \
>    baz
>         ])
> 
>> Tracing code should then trace _just_ AC_CONFIG_MACRO_DIR, which will be
>> called once per directory, and where the first call is the preferred
>> dumping ground for new macros.  There shouldn't be a need to trace
>> AC_CONFIG_MACRO_DIRS.
>>
> I like this design.  It will allow the "tracers" like aclocal and libtool
> to be dumber in their implementation, and makes it easier to have a more
> consistent behaviour among them.
> 
> So +1 from me.
> 
> I'll keep my automake patches on hold until you have gone ahead with your
> plan, to avoid introducing inconsistencies and messing up the already
> suboptimal automake history even more.
> 
> Thanks for your continuous and outstanding work,
>   Stefano
>
Any progress on this?

Regards,
  Stefano