This file is indexed.

preinst is in libgbm1-lts-xenial 11.2.0-1ubuntu2~trusty2.

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
set -e

dir=/usr/lib/x86_64-linux-gnu
pkg=$(dpkg-divert --listpackage "${dir}/libgbm.so.1.0.0")

if [ -n "${pkg}" -a "${pkg}" != "libgbm1-lts-xenial" ]; then
    dpkg-divert --remove --package ${pkg} --rename \
        --divert "${dir}/old.libgbm.so.1.0.0" "${dir}/libgbm.so.1.0.0"
    dpkg-divert --remove --package ${pkg} --rename \
        --divert "${dir}/old.libgbm.so.1" "${dir}/libgbm.so.1"
    dpkg-divert --remove --package ${pkg} --rename \
        --divert "${dir}/gbm/old.gbm_gallium_drm.so" "${dir}/gbm/gbm_gallium_drm.so"
    pkg=""
fi

if [ -z "${pkg}" ]; then
    dpkg-divert --add --package "libgbm1-lts-xenial" --rename \
        --divert "${dir}/old.libgbm.so.1.0.0" "${dir}/libgbm.so.1.0.0"
    dpkg-divert --add --package "libgbm1-lts-xenial" --rename \
        --divert "${dir}/old.libgbm.so.1" "${dir}/libgbm.so.1"
    dpkg-divert --add --package "libgbm1-lts-xenial" --rename \
        --divert "${dir}/gbm/old.gbm_gallium_drm.so" "${dir}/gbm/gbm_gallium_drm.so"
fi



exit 0