POSTIN

/bin/sh

touch --no-create /usr/share/icons/hicolor || :
/usr/bin/gtk-update-icon-cache --quiet /usr/share/icons/hicolor || :
update-desktop-database /usr/share/applications &>/dev/null || :

POSTUN

/bin/sh

touch --no-create /usr/share/icons/hicolor || :
/usr/bin/gtk-update-icon-cache --quiet /usr/share/icons/hicolor || :
update-desktop-database /usr/share/applications &>/dev/null || :