postinst is in libwxgtk2.6-dev 2.6.3.2.2-5ubuntu4.
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 | #! /bin/sh
set -e
update-alternatives --install /usr/bin/wx-config wx-config \
/usr/lib/wx/config/gtk2-unicode-release-2.6 \
$(( 26 * 10 + 8 ))
|