This file is indexed.

postinst is in libslepc-complex-3.6.1-dev 3.6.1.dfsg1-2build2.

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.

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#!/bin/sh -e

DEB_HOST_MULTIARCH=x86_64-linux-gnu

SLEPC_VERSION=3.6.1
SLEPC_ARCH=${DEB_HOST_MULTIARCH}
SLEPC_COMPLEX_ARCH=${SLEPC_ARCH}-complex
SLEPC_VERSION_NUMBER=$( echo ${SLEPC_VERSION} | sed "s/\.//g" )

# Make alternatives links
if [ "$1" = "configure" ]; then
update-alternatives --install /usr/lib/slepc slepc /usr/lib/slepcdir/${SLEPC_VERSION}/${SLEPC_COMPLEX_ARCH} ${SLEPC_VERSION_NUMBER}73 \
  --slave /usr/lib/libslepc.so libslepc.so /usr/lib/${DEB_HOST_MULTIARCH}/libslepc_complex.so.${SLEPC_VERSION} \
  --slave /usr/lib/${DEB_HOST_MULTIARCH}/libslepc.so libslepc.so.multiarch /usr/lib/${DEB_HOST_MULTIARCH}/libslepc_complex.so.${SLEPC_VERSION} \
  --slave /usr/include/slepc slepcinclude /usr/lib/slepcdir/${SLEPC_VERSION}/${SLEPC_COMPLEX_ARCH}/include \
  --slave /usr/lib/pkgconfig/SLEPc.pc SLEPc.pc /usr/lib/slepcdir/${SLEPC_VERSION}/${SLEPC_COMPLEX_ARCH}/lib/pkgconfig/SLEPc.pc
fi