bug#44531: 27.1; Emacs 27 fails to build from source on m68k (regression)

[Daniel Colascione]

On November 20, 2020 11:48:09 PM Eli Zaretskii <eliz@gnu.org> wrote:

> > From: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
> > Date: Mon, 09 Nov 2020 14:30:34 +0100
> >
> > Hello!
> >
> > Starting with version 27, Emacs has started failing to build from source
> > on m68k (Linux) with the following error message:


m68k is big endian, isn't it? Try building with enable-checking to see 
whether we can see where the bit rearrangement problem might be.

> > /bin/mkdir -p ../etc
> > /usr/bin/make -C ../lisp update-subdirs
> > make[4]: Entering directory '/<<BUILDDIR>>/emacs-27.1+1/debian/build-gtk/lisp'
> > make[4]: Leaving directory '/<<BUILDDIR>>/emacs-27.1+1/debian/build-gtk/lisp'
> > cp -f temacs bootstrap-emacs
> > rm -f bootstrap-emacs.pdmp
> > ./temacs --batch  -l loadup --temacs=pbootstrap
> > Loading loadup.el (source)...
> > dump mode: pbootstrap
> > Using load-path (/<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp 
> > /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/emacs-lisp 
> > /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/progmodes 
> > /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/language 
> > /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/international 
> > /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/textmodes 
> > /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/vc)
> > Loading emacs-lisp/byte-run (source)...
> > Loading emacs-lisp/backquote (source)...
> > Loading subr (source)...
> > Loading version (source)...
> > (...)
> > Loading /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/vc/vc-hooks.el 
> > (source)...
> > Loading /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/vc/ediff-hook.el 
> > (source)...
> > Loading /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/uniquify.el 
> > (source)...
> > Loading /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/electric.el 
> > (source)...
> > Loading 
> > /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/emacs-lisp/eldoc.el 
> > (source)...
> > Loading /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/cus-start.el 
> > (source)...
> > Loading /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/tooltip.el (source)...
> > Finding pointers to doc strings...
> > Finding pointers to doc strings...done
> > Dumping under the name bootstrap-emacs.pdmp
> > dumping fingerprint: 
> > 7b5c59c589dc151eb1e4269bd83fbe809616b5cb9bb5c80014d5b560b391dfb6
> > dump relocation out of range
> >
> > Full build log available in [1].
> >
> > I have not been able to figure out what "dump relocation out of range"
> > actually means, so any explanation is much appreciated.
>
> Daniel, any advice for how to go about this problem?