Current status of HDF5 in ArchLinux:

– hdf5[0] provides only C binding, with high-level library (HL), but no thread-safety since 1.10 release[1] since it’s incompatible with HL[2]. The package still adds --with-pthread=/usr/lib to ./configure call although it’s useless without thread-safety[3]. There is also use of the removed --enable-linux-lfs (also in other hdf5 packages), which according to [2] should be replaced by --enable-large-file, though this option seems undocumented in ./configure --help.
– hdf5-cpp-fortran[4] adds CPP/Fortran bindings to that. So at this points it includes hdf5 package. That wasn’t the case before because of thread-safety being incompatible with them[5,6]. Note the use of the deprecated --fortran-2003 which is now automatically enabled if the compiler supports it.
– hdf5-openmpi[7] which add CPP and parallel (MPI) to hdf5. At this points, it also includes hdf5 package. It wasn’t the case before because of thread-safety being incompatible with parallel mode[8]. It could even include hdf5-cpp-fortran if Fortran binding where enabled. They apparently weren’t included because of some bug[9] that was only mentioned by one people and apparently not investigated at the time, but which is clearly not present anymore.
– hdf5-fortran-openmpi[10] which add Fortran and parallel (MPI) to hdf5. Same as the former with CPP removed in favour of Fortran. Not sure whether not having CPP there was really needed at the time this package was pushed, but anyway…

So, except maybe a thread-safe version (per [2]) that could be added (and the mpich version in the AUR), I think that every of the above packages should be merged back into hdf5. I thus provide a PKGBUILD in attachment that fulfil this purpose but also fix some random things like url or use of https[11], bash variables… Also switches to md5sums since that’s what upstream provides[12]. The mpi.patch file is in hdf5-openmpi[13].

[0] https://www.archlinux.org/packages/extra/x86_64/hdf5/
[1] https://git.archlinux.org/svntogit/packages.git/commit/trunk?h=packages/hdf5&id=c46166e0d5e3c2202d9dcc7f1e79d27ed49d43f3
[2] https://bugs.archlinux.org/task/49212#comment146674
[3] https://bugs.archlinux.org/task/49212
[4] https://www.archlinux.org/packages/extra/x86_64/hdf5-cpp-fortran/
[5] https://bugs.archlinux.org/task/31313
[6] https://bugs.archlinux.org/task/25098
[7] https://www.archlinux.org/packages/extra/x86_64/hdf5-openmpi/
[8] https://bugs.archlinux.org/task/28581
[9] https://bugs.archlinux.org/task/28581#comment89911
[10] https://aur.archlinux.org/packages/hdf5-fortran-openmpi
[11] https://bugs.archlinux.org/task/51564
[12] https://support.hdfgroup.org/ftp/HDF5/releases/hdf5-1.10/hdf5-1.10.0-patch1/src/hdf5-1.10.0-patch1.md5
[13] https://git.archlinux.org/svntogit/packages.git/tree/trunk/mpi.patch?h=packages/hdf5-openmpi