postinst is in liblapack3 3.5.0-2ubuntu1.
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 | #! /bin/sh
set -e
update-alternatives --install /usr/lib/liblapack.so.3 liblapack.so.3 \
/usr/lib/lapack/liblapack.so.3 10 \
--slave /usr/lib/liblapack.so.3gf liblapack.so.3gf /usr/lib/lapack/liblapack.so.3
# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.
exit 0
|