postinst is in libegl1-mesa-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.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 | #!/bin/sh
set -e
THIS_PACKAGE=libegl1-mesa
THIS_SCRIPT=postinst
case "$1" in
configure)
# Use alternatives to make it easier to switch between Mesa and 3rd party modules
update-alternatives --force \
--install /etc/ld.so.conf.d/x86_64-linux-gnu_EGL.conf x86_64-linux-gnu_egl_conf /usr/lib/x86_64-linux-gnu/mesa-egl/ld.so.conf 500 \
# ldconfig needs to be run immediately as we're changing /etc/ld.so.conf.d/ with
# alternatives.
LDCONFIG_NOTRIGGER=y ldconfig
esac
# Automatically added by dh_makeshlibs
if [ "$1" = "configure" ]; then
ldconfig
fi
# End automatically added section
exit 0
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