infodir=usr/share/info post_install() { [ -x usr/bin/install-info ] || return 0 install-info $infodir/screen.info.gz $infodir/dir 2>/dev/null } post_upgrade() { post_install $1 if [ $(vercmp $2 4.0.3-15) -lt 0 ]; then echo 'The location of the screen sockets has changed.' echo 'If you need to access running screen sessions, run' echo ' # SCREENDIR=/tmp/screens/S-$USER/ screen ...' fi } pre_remove() { [ -x usr/bin/install-info ] || return 0 install-info --delete $infodir/screen.info.gz $infodir/dir 2>/dev/null }