Bug#923103: flang-7: flang hangs building pnetcdf.f90

[Alastair McKinstry]

Package: flang-7
Version: 20181226-2
Severity: normal

Dear Maintainer,

With OpenMPI built with flang, pnetcdf builds hang:

alastair at debian:~/deb-packages/pnetcdf/pnetcdf-1.11.0/build-static/src/binding/f90$ /usr/bin/mpif90.openmpi --verbose -O0 -I. -I../../../../src/binding/f90   -c pnetcdf.f90 -o pnetcdf.o
clang version 7.0.1
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/7
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/7.4.0
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/8
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7.4.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/8
Selected GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/8
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@mx32
Selected multilib: .;@m64
 "/usr/bin/flang1" pnetcdf.f90 -opt 0 -terse 1 -inform warn -nohpf -nostatic -inform warn -x 19 0x400000 -quad -x 68 0x1 -x 59 4 -x 15 2 -x 49 0x400004 -x 51 0x20 -x 57 0x4c -x 58 0x10000 -x 124 0x1000 -tp px -x 57 0xfb0000 -x 58 0x78031040 -x 47 0x08 -x 48 4608 -x 49 0x100 -stdinc /usr/bin/../include:/usr/local/include:/usr/lib/clang/7.0.1/include:/usr/include/x86_64-linux-gnu:/usr/lib/x86_64-linux-gnu/fortran/flang-7:/include:/usr/include -def unix -def __unix -def __unix__ -def linux -def __linux -def __linux__ -def __NO_MATH_INLINES -def __LP64__ -def __LONG_MAX__=9223372036854775807L -def __SIZE_TYPE__=unsigned long int -def __PTRDIFF_TYPE__=long int -def __x86_64 -def __x86_64__ -def __amd_64__amd64__ -def __k8 -def __k8__ -def __THROW= -def __extension__= -def __PGLLVM__ -freeform -idir . -idir ../../../../src/binding/f90 -idir /usr/lib/x86_64-linux-gnu/openmpi/include -idir /usr/lib/x86_64-linux-gnu/openmpi/lib -vect 48 -x 54 1 -x 70 0x40000000 -y 163 0xc0000000 -x 189 0x10 -stbfile pnetcdf-e9f8a6.stb -modexport pnetcdf-e9f8a6.cmod -modindex pnetcdf-e9f8a6.cmdx -output pnetcdf-e9f8a6.ilm
^C




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

Kernel: Linux 4.19.0-3-amd64 (SMP w/2 CPU cores)
Kernel taint flags: TAINT_CRAP
Locale: LANG=en_IE.UTF-8, LC_CTYPE=en_IE.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to en_IE.UTF-8), LANGUAGE=en_IE:en (charmap=UTF-8) (ignored: LC_ALL set to en_IE.UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages flang-7 depends on:
ii  libc6         2.28-7
ii  libflang-dev  20181226-2
ii  libflang0d-7  20181226-2
ii  libgcc1       1:8.2.0-21
ii  libllvm7      1:7.0.1-6
ii  libstdc++6    8.2.0-21

flang-7 recommends no packages.

flang-7 suggests no packages.

-- no debconf information