postinst is in libgl1-mesa-glx 11.2.0-1ubuntu2.
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 28 29 30 | #!/bin/sh
set -e
THIS_PACKAGE=libgl1-mesa-glx
THIS_SCRIPT=postinst
case "$1" in
configure)
# on upgrade from previous versions, clean up our non-arch-qualified
# alternative
if dpkg --compare-versions "$2" lt-nl 7.10.3-0ubuntu1; then
update-alternatives --remove gl_conf /usr/lib/mesa/ld.so.conf
fi
# 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_GL.conf x86_64-linux-gnu_gl_conf /usr/lib/x86_64-linux-gnu/mesa/ld.so.conf 500 \
--slave /usr/lib/x86_64-linux-gnu/xorg/extra-modules x86_64-linux-gnu_xorg_extra_modules /usr/lib/x86_64-linux-gnu/xorg/x11-extra-modules
# ldconfig needs to be run immediately as we're changing /etc/ld.so.conf.d/ with
# alternatives.
LDCONFIG_NOTRIGGER=y ldconfig
esac
exit 0
# vim:set ai et sw=2 ts=2 tw=80:
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