Re: FYI, 2.73 slower than 2.72

Hi guys!

> Le 19 mars 2026 =C3=A0 15:36, Paul Eggert <[email protected]> a =
=C3=A9crit :
>=20
> On 2026-03-18 22:01, Nick Bowler wrote:
>> On Wed, Mar 18, 2026 at 12:57:53PM -0400, Zack Weinberg wrote:
>>> Do you happen to remember why we concatenate confdefs.h and the test
>>> program, instead of #include-ing confdefs.h from the test program?
>> A long time ago C compilations did use #include "confdefs.h" but it =
was
>> changed to resemble the current method in version 2.55 (2002).
>> No explicit rationale is given but it was probably done this way to
>> improve the logging around compilation failures.
>=20
> Thanks, then let's ask Akim. Akim, is that why you installed commit =
c4e69deefdc48a44849fd6c1ae4a49811e62f0c1 dated 2002-10-31 into =
lib/autoconf/c.m4's AC_LANG_SOURCE(C)? We're asking because we're =
thinking of going back to the old way of doing things, for efficiency =
reasons. I'm attaching a copy of that old commit for =
convenience.<0001-lib-autoconf-general.m4-_AC_MSG_LOG_CONFTEST-New.patch>

Wow...  That's not recent :)

I believe the answer is in =
https://lists.gnu.org/archive/html/autoconf-patches/2002-10/msg00072.html.=


Cheers!=