postinst is in libpetsc-complex-3.7.7 3.7.7+dfsg1-2build5.
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 -e
DEB_HOST_MULTIARCH=x86_64-linux-gnu
PETSC_VERSION=3.7.7
PETSC_VERSION_NUMBER=$( echo ${PETSC_VERSION} | sed "s/\.//g" )
SONAME=3.7
# Make alternatives links
if [ "$1" = "configure" ]; then
# alternative petsc version (for given soname), real or complex
update-alternatives --install /usr/lib/${DEB_HOST_MULTIARCH}/libpetsc.so.${SONAME} libpetsc.so.${SONAME} /usr/lib/${DEB_HOST_MULTIARCH}/libpetsc_complex.so.${PETSC_VERSION} ${PETSC_VERSION_NUMBER}73 \
--slave /usr/lib/${DEB_HOST_MULTIARCH}/libpetsc.so.${PETSC_VERSION} libpetsc.so.${PETSC_VERSION} /usr/lib/${DEB_HOST_MULTIARCH}/libpetsc_complex.so.${PETSC_VERSION}
# alternative complex version (for given soname)
update-alternatives --install /usr/lib/${DEB_HOST_MULTIARCH}/libpetsc_complex.so.${SONAME} libpetsc_complex.so.${SONAME} /usr/lib/${DEB_HOST_MULTIARCH}/libpetsc_complex.so.${PETSC_VERSION} ${PETSC_VERSION_NUMBER}73
fi
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