Comment # 40 on bug 1220818 from Petr Gajdos

For the information, the revert of update-alternatives removal is now in
Factory trough https://build.opensuse.org/request/show/1176179
(unfortunately, I have realized that post-mortem as I missed the obs
notification mail)

In 
https://build.opensuse.org/project/show/home:pgajdos:magick-no-ua
there is a variant without update alternatives. To summarize, it:
1. uses a new /etc/IMagick-7 dir (question is, whether this is reasonable,
   given that the revert is in factory yet)
2. ships policies under %{_datadir}/libMagickCore%{libspec}%{clibver}/policies
   together with imagick-set-policy helper script which is supposed make a
   link /etc/IMagick-7/policy.xml to one of that policy 
3. policies can be installed in parallel, imagick-set-policy will choose the 
   'most secure one' even if they can not be exactly linearly ordered to
   provide  /etc/IMagick-7/policy.xml; other policies installed on the same
   system can be used together with MAGICK_CONFIGURE_PATH
4. imagick-set-policy is run from %post/%postun of individual configuration
   variant packages and the main package; it can be used even directly, for
   testing purposes

We can choose (again, given that the revert is in factory already) the less
intrusive change and replace the update-alternaives with the script analogous
to imagick-set-policy to provide the /etc/ImageMagick-7 link to variants
instead of update-alternatives.