Package: scotch Version: 6.0.6-2 Followup-For: Bug #919308 Two questions on the patch to use pkg-config instead of mpicc to build scotch.
The mpicc docs say that if you need to specify a compiler instead of using mpicc, then you can get mpi flags via mpicc -showme:compile mpicc -showme:link But there is a discrepancy in the link flags: $pkg-config --libs mpi-c -L/usr/lib/x86_64-linux-gnu/openmpi/lib -lmpi $ mpicc -showme:link -pthread -L/usr/lib/x86_64-linux-gnu/openmpi/lib -lmpi i.e. pkg-config misses the -pthread link flag. It is provided in cflags, but if I read the gcc docs correctly it should also be provided separately as a link flag. Perhaps this is a bug in mpicc's pkg-config files. The second question is that you've assigned `pkg-config -libs mpi-c` to LDFLAGS. This means that for linking C++ code, it will miss the -lmpi_cxx flag. Not a problem for scotch in practice since it is C, not C++, but something to keep in mind. Drew -- 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 6.0.6-2 ii zlib1g 1:1.2.11.dfsg-1 scotch recommends no packages. scotch suggests no packages. -- no debconf information
