From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Ted Zlatanov Newsgroups: gmane.emacs.devel Subject: Re: where to report bootstrap bugs? 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List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:85894 Archived-At: On Mon, 31 Dec 2007 14:15:10 -0800 Dan Nicolaescu wrote: DN> Ted Zlatanov writes: >> On Mon, 31 Dec 2007 22:14:25 +0100 Michael Albinus wrote: >> MA> Ted Zlatanov writes: >> >> Is there a more appropriate place to ask about `make bootstrap' problems >> >> from a CVS checkout, if emacs-devel is not it? >> >> >> >> After 1.5 months since I submitted a problem report to emacs-devel (I >> >> can't do a bug report because the bootstrap won't build) I haven't heard >> >> anything. While I may be the only one having the problem, my Ubuntu >> >> installation is hardly unusual so other users could be running into this >> >> as well. >> MA> I don't remember your report, but from time to time I need a "make MA> distclean; ./configure; make bootstrap". Maybe this is sufficient for MA> you as well? I'm also running Ubuntu. >> >> I thought I was going crazy, so I did this, plus a clean checkout to a >> completely new directory... Nothing worked. I traced the problem to a >> test in fileio.c, and I wonder if it's a system library issue. See my >> report, which I reposted. DN> You can try compiling with -O0 to try exclude compiler bugs... Ah, thanks for the hint! I looked through my CFLAGS and found that the bug happens with CFLAGS '-malign-double' which I had turned on together with other optimization flags like -O9, -ffast-math, and -funroll-loops. None of the others had an effect (and they shouldn't), but this one broke the bootsrap build. I kept looking at the compiler output while debugging instead of looking at the compiler itself, that's why I missed this so far. Can anyone else verify this is the problem? For me, it has fixed the build to remove the -malign-double flag. I don't know if -malign-double in the CFLAGS should be considered a user screwup or an actual Emacs bug since it breaks the bootstrap (at least on i686 32-bit). Maybe the bootstrap process should catch this flag and at least complain about it. In any case, thanks for your help! Ted