post_install() {
  ln -s /usr/lib/libfreeimage-3.11.0.so /usr/lib/libfreeimage.so
  ln -s /usr/lib/libfreeimage-3.11.0.so /usr/lib/libfreeimage.so.3
  /sbin/ldconfig
}
post_upgrade() {
  /sbin/ldconfig
}
post_remove() {
  rm /usr/lib/libfreeimage.so
  rm /usr/lib/libfreeimage.so.3
  /sbin/ldconfig
}