Package: libhdf5-dev Version: 1.10.4+repack-11 Severity: normal libhdf5-dev, libhdf5-openmpi-dev and libhdf5-mpich-dev all provide alternatives for hdf5's pkg-config file hdf5.pc.
But the priorities are the same, priority 50 for all. This means the behaviour of hdf5 is undetermined. serial or mpi (even mpich) might randomly get selected at configure time. A hierarchy of priorities needs to be set so the value of hdf5.pc is not random, whether serial or mpi gets higher priority (I'd be inclined to make mpi higher priority than serial. If you've installed it, you'd want to use it). openmpi vs mpich might a bit more fiddly to resolve, but the order of priority is more clear then: the default mpi for the architecture should have higher priority than the other mpi (in my opinion the alternative mpi should probably be lower priority than serial) In this context I recommend providing a hdf5-mpi.pc that links to the default mpi version (hdf5-openmpi.pc or hdf5-mpich.pc). Then client programs can just invoke "pkg-config --cflags hdf5-mpi" (e.g. to get the flags for hdf5-mpi in the case when hdf5.pc is set to hdf5-serial.pc), without having to worry about whether the mpi is openmpi or mpich. So if openmpi is default, then a suggestion for priorities for hdf5.pc alternatives could be hdf5-serial.pc 20 hdf5-mpi.pc 35 hdf5-openmpi.pc 30 hdf5-mpich.pc 10 If mpich is default, then hdf5-serial.pc 20 hdf5-mpi.pc 35 hdf5-openmpi.pc 10 hdf5-mpich.pc 30 -- System Information: Debian Release: bullseye/sid APT prefers unstable APT policy: (500, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 5.4.0-4-amd64 (SMP w/4 CPU cores) Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8), LANGUAGE=en_AU:en (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages libhdf5-dev depends on: ii hdf5-helpers 1.10.4+repack-11 ii libaec-dev 1.0.4-1 ii libhdf5-103 1.10.4+repack-11 ii libhdf5-cpp-103 1.10.4+repack-11 ii libjpeg-dev 1:1.5.2-2 ii libjpeg62-turbo-dev [libjpeg-dev] 1:1.5.2-2+b1 ii zlib1g-dev 1:1.2.11.dfsg-2 libhdf5-dev recommends no packages. Versions of packages libhdf5-dev suggests: ii libhdf5-doc 1.10.4+repack-11 -- no debconf information
