bug#22662: 25.0.91; unable to compile on debian wheezy

[Sam Halliday <sam.halliday@gmail.com>]

Hi,

I have a docker image which builds various versions of emacs in a
completely well-defined and reproducable debian wheezy environment:

  https://github.com/ensime/ensime-docker/blob/v1.x/Dockerfile

I wanted to add the pretest to the build list and I added these
instructions after the Emacs section

################################################
# Emacs Pretest
RUN\
  apt-get install -y debfoster &&\
  debfoster -q &&\
  apt-get build-dep -y emacs23 &&\
  mkdir /tmp/emacs-build &&\
  EMACS_VERSION=25.0.91
  curl --disable-epsv ftp://alpha.gnu.org/gnu/emacs/pretest/emacs-${EMACS_VERSION}.tar.xz -o /tmp/emacs-${EMACS_VERSION}.tar.xz &&\
  cd /tmp && tar xf emacs-${EMACS_VERSION}.tar.xz &&\
  cd emacs-${EMACS_VERSION} &&\
  ./configure --prefix=/opt/emacs-${EMACS_VERSION} &&\
  make && make install &&\
  echo Y | debfoster -f &&\
  rm -rf /tmp/emacs* &&\
  apt-get clean


Unfortunately, this failed at `make' with this error

**************************************************
Warning: Your system has a gap between BSS and the
heap (2602367 bytes).  This usually means that exec-shield
or something similar is in effect.  The dump may
fail because of this.  See the section about
exec-shield in etc/PROBLEMS for more information.
**************************************************


Since this builds for all previous 24.x releases of Emacs in a
completely well-defined and reproducible environment, I suspect that
Emacs has introduced a bug.


-- 
Best regards,
Sam