Re: make distclean and quail

[Eli Zaretskii <eliz@gnu.org>]

> From: Juanma Barranquero <lekktu@gmail.com>
> Date: Sun, 11 Aug 2013 23:39:28 +0200
> Cc: Emacs developers <emacs-devel@gnu.org>
> 
> > Perhaps you should always create a log of a build (e.g., with 'tee'),
> > and collect those that fail like this.  Then, when you have a few, we
> > could see what do they have in common.
> 
> I have a log of this one, and the previous (successful) one.  See the
> attached files (the first ~120 lines of the next-to-last boot,
> successful.log, and the last, unsuccesful.log).

So in both cases you typed "make bootstrap", the Makefile's were all
identical, and you still got different results, is that true?  That
would mean you have a Heisenbug of some kind.

There is some difference between the two runs that might give a clue:

  @@ -29,13 +29,22 @@
   make[1]: Leaving directory `/c/Devel/emacs/repo/trunk/lwlib'
   (cd lib;      make  maintainer-clean)
   make[1]: Entering directory `/c/Devel/emacs/repo/trunk/lib'
  +cd .. && make  am--refresh
  +make[2]: Entering directory `/c/Devel/emacs/repo/trunk'
  +[ -r "/c/devel/emacs/repo/trunk/src/config.in" ] || ( cd /c/devel/emacs/repo/trunk && autoheader )
  +make[2]: Nothing to be done for `am--refresh'.
  +make[2]: Leaving directory `/c/Devel/emacs/repo/trunk'
  +make[2]: Entering directory `/c/Devel/emacs/repo/trunk'
  +[ -r "/c/devel/emacs/repo/trunk/src/config.in" ] || ( cd /c/devel/emacs/repo/trunk && autoheader )
  +make[2]: Nothing to be done for `am--refresh'.
  +make[2]: Leaving directory `/c/Devel/emacs/repo/trunk'
   test -z "" || rm -f 
   test -z "libgnu.a " || rm -f libgnu.a 
   rm -f *.o

Any idea why it does "am--refresh" in one case, but not the other?