postinst is in libhdf5-openmpi-dev 1.8.16+docs-4ubuntu1.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | #!/bin/sh
set -e
if [ "openmpi" != "serial" ]; then
update-alternatives \
--install /usr/bin/h5pcc h5pcc /usr/bin/h5pcc.openmpi 50 \
--slave /usr/bin/h5pfc h5pfc /usr/bin/h5pfc.openmpi \
--slave /usr/share/man/man1/h5pcc.1.gz h5pcc.1.gz /usr/share/man/man1/h5pcc.openmpi.1.gz \
--slave /usr/share/man/man1/h5pfc.1.gz h5pfc.1.gz /usr/share/man/man1/h5pfc.openmpi.1.gz
fi
update-alternatives \
--install /usr/lib/x86_64-linux-gnu/pkgconfig/hdf5.pc hdf5.pc /usr/lib/x86_64-linux-gnu/pkgconfig/hdf5-openmpi.pc 50 \
exit 0
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