Bug#931815: g++: asymptote fails to compile on alpha

[Hilmar Preusse <hille42@web.de>]

Package: g++-8
Version: 8.3.0-7
Severity: important

Hi,

we observe for some versions of asymptote, that the compilation of
the package fails. The build logs tells, that we look at a bug in gcc.
Please be so kind to investigate.

Here is the rather long build log incl. error message.

https://buildd.debian.org/status/fetch.php?pkg=asymptote&arch=alpha&ver=2.49-2&stamp=1562781262&raw=0

Thanks,
  Hilmar

-- System Information:
Debian Release: bullseye/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 4.19.0-5-amd64 (SMP w/1 CPU core)
Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages g++-8 depends on:
ii  gcc-8            8.3.0-18
ii  gcc-8-base       8.3.0-18
ii  libc6            2.28-10
ii  libgmp10         2:6.1.2+dfsg-4
ii  libisl19         0.20-2
ii  libmpc3          1.1.0-1
ii  libmpfr6         4.0.2-1
ii  libstdc++-8-dev  8.3.0-18
ii  zlib1g           1:1.2.11.dfsg-1

g++-8 recommends no packages.

Versions of packages g++-8 suggests:
pn  g++-8-multilib    <none>
pn  gcc-8-doc         <none>
pn  libstdc++6-8-dbg  <none>

-- no debconf information