Bug#854692: pybind11: FTBFS due to an internal compiler error

[Jason Rhinelander <jason@imaginary.ca>]

Package: g++-6
Version: 6.3.0-6
Followup-For: Bug #854692

Dear Maintainer,

This looks a whole lot like https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79296
having now been backported into the gcc-6-branch, which would seem to warrant
an escalation of the upstream bug.  The "reduced testcase" attached there
triggers the ICE now with 6.3.0-6, while it doesn't with 6.3.0-5.

I can also confirm that pybind11 itself builds perfectly with testing's g++-6
6.3.0-5; this regression is new to 6.3.0-6.  Having this regression migrate to
testing would be a nuissance (upstream pybind11 itself uses debian testing for
some of its travis-ci builds).


Jason Rhinelander



-- System Information:
Debian Release: 9.0
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.10.0-rc6-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages g++-6 depends on:
ii  gcc-6            6.3.0-6
ii  gcc-6-base       6.3.0-6
ii  libc6            2.24-9
ii  libgmp10         2:6.1.2+dfsg-1
ii  libisl15         0.18-1
ii  libmpc3          1.0.3-1
ii  libmpfr4         3.1.5-1
ii  libstdc++-6-dev  6.3.0-6
ii  zlib1g           1:1.2.8.dfsg-5

g++-6 recommends no packages.

Versions of packages g++-6 suggests:
pn  g++-6-multilib    <none>
pn  gcc-6-doc         <none>
pn  libstdc++6-6-dbg  <none>

-- no debconf information