Bug#925823: scotch: ftbfs with GCC-9

[Drew Parsons]

Package: scotch
Version: 6.0.7-2
Followup-For: Bug #925823

The segfault is also triggered by order_io.c l.292, still segfaulting in
./test_scotch_graph_order data/bump_b1.grf

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7f9c531 in _SCOTCHorderSaveTree (ordeptr=<optimized out>, vlbltab=<optimized out>, stream=0x555555559260) at order_io.c:292
292	order_io.c: No such file or directory.
(gdb) bt
#0  0x00007ffff7f9c531 in _SCOTCHorderSaveTree (ordeptr=<optimized out>, vlbltab=<optimized out>, stream=0x555555559260) at order_io.c:292
#1  0x00005555555553f3 in main (argc=<optimized out>, argv=<optimized out>) at test_scotch_graph_order.c:144


bump_b1.grf seems to be causing problems, see also Bug#932777.

I'll work around by skipping the failing bump_b1.grf tests (patch
skip_failing_tests.patch), until upstream addresses
https://gforge.inria.fr/tracker/index.php?func=detail&aid=21768&group_id=248&atid=1079





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

Kernel: Linux 4.19.0-5-amd64 (SMP w/4 CPU cores)
Kernel taint flags: TAINT_WARN, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8), LANGUAGE=en_AU.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages scotch depends on:
ii  libbz2-1.0     1.0.6-9.2
ii  libc6          2.28-10
ii  liblzma5       5.2.4-1
ii  libopenmpi3    3.1.3-11
ii  libscotch-6.0  6.0.7-2
ii  zlib1g         1:1.2.11.dfsg-1+b1

scotch recommends no packages.

scotch suggests no packages.

-- no debconf information