How to upgrade symtools

to 0.17

The build-time dependencies have changed.

Now you need to have the skalibs package, version 0.46 or later, installed on your system in order to build symtools.

to 0.16

The build-time dependencies have changed.

Now you need to have the skalibs package, version 0.40 or later, installed on your system in order to build symtools.

The run-time dependencies have changed.

Now you need to have the execline package, version 1.06 or later, installed on your system in order to run update-symlinks-slashpackage.

The obsolete readlink command name has been removed. You must now use linkname.

to 0.15

The build-time dependencies have changed.

Now you need to have the skalibs package, version 0.34 or later, installed on your system in order to build symtools.

from 0.13 to 0.14

The build-time dependencies have changed.

Now you need to have the skalibs package installed on your system in order to build symtools.

from pre-0.12 to 0.12 or 0.13

Problem

symtools-0.10 and symtools-0.11 were installed in /package/host/skarnet.org.
symtools-0.12 is installed in /package/admin.
If you have no scripts depending on a pre-0.12 symtools installation, there is no problem for you. If you had installed a pre-0.12 symtools version and written scripts depending on it, you need to ensure backwards compatibility until you update your scripts to use only /package/admin/symtools.

Solution step by step

Install symtools-0.12 normally.
Make, atomically if you can, /package/host/skarnet.org/symtools a symlink to /package/admin/symtools.
Remove /package/host/skarnet.org/symtools-oldversion.
Update your programs to stop relying on /package/host/skarnet.org/symtools and use /package/admin/symtools, or just /command, instead.
Remove the /package/host/skarnet.org/symtools symlink.