bug#13378: Cleaning up AC_PROG_CC_C_O semantics

[Stefano Lattarini]

On 01/16/2013 07:24 PM, Eric Blake wrote:
> On 01/16/2013 10:48 AM, Paul Eggert wrote:
>> On 01/16/13 04:46, Stefano Lattarini wrote:
>>> Makes sense.  Should I try to implement something along these lines (might
>>> take a few days), or are you planning to do that yourself (in which case
>>> I'll avoid the duplicated efforts)?
>>
>> I wasn't planning on doing that, so please go ahead.
> 
> Didn't you already add _AM_PROG_CC_C_O_HELPME; is that a sufficient
> witness macro for whether to use the proposed cleanups?
> 
Indeed that is enough for Automake's current needs.  But that hook is
currently in AC_PROG_CC, while Nick's proposal involved having something
like that in AC_PROG_CC_C_O, for which AM_PROG_CC_C_O would continue to
be a thin wrapper (but automatically invoked by AC_CONFIG_COMMANDS_PRE
whenever needed).

Regards,
  Stefano