Re: bug in autoconf-2.64

[Peter O'Gorman]

On 02/22/2011 04:04 PM, Eric Blake wrote:
> [adding bug-m4]
>
> On 02/22/2011 01:38 PM, Mike Stump wrote:
> > On Feb 22, 2011, at 11:00 AM, Eric Blake wrote:
> > > Hmm, can you point to a URL of the web archive of that thread, to see if
> > > I can glean anything from that discussion?
> >
> > http://gcc.gnu.org/ml/gcc-patches/2011-02/msg01393.html
>
> According to http://gcc.gnu.org/ml/gcc-patches/2011-02/msg01474.html,
> this might be a bug in m4 rather than in autoconf.
>
> Unfortunately, I don't see anything obvious in m4's NEWS that would
> explain such a difference between 1.4.13 and 1.4.15.
>
> If the problem is reliably caused by the version of m4, then can you do
> a git bisect on m4 sources to pinpoint a particular m4 revision where
> the problem first appears?

Unless I did it wrong (entirely possible) -
76d1c49b8056aaf3f1046ba19c6dea6eb6aecb78 is the first bad commit -
Author: Eric Blake <address@hidden>
Date:   Thu Jul 29 07:25:33 2010 -0600

    Update to newer gnulib.

    * gnulib: Update to latest, for strtod fix.
    * src/Makefile.am (m4_LDADD): Update link libraries accordingly.
    * cfg.mk (local-checks-to-skip): Skip broken check.
    * doc/m4.texinfo: Drop all use of @acronym{}.
    * THANKS: Update.
    Reported by Rainer Tammer.


Peter