robotpkg

Are the names of the python packages suggested according to the python version detected in the system or is the user required to use only python3?

Not really a typo, but a best-effort to provide a useful hint.

Regarding python packages, the system usually provides only one
version for the one python interpreter available (since python2.7 is
usually not provided anymore), but you could manually install more and
depend on them. It is doable to suggest python3-stuff as an apt
package name depending if the selected python is >=3.0 or not, but it
must be done for every single dependency in mk/sysdep.

In any case, the system package names are really just a hint and
should not be fully trusted. What counts is the list of files reported
in the sysdep.log file (mentionned in the error message when a dependency
is not found). The version requirement is also printed and this is
what should drive your choice.

For liblog4cxx12-dev or liblog4cxx-dev, it also depends on what else
is installed on your system. Usually, the versionned packages (like
liblog4cxx12) are provided for backward compat with incomptible
programs.

Finally, it happens that the apt package name changes, and tracking
those changes is painful and error prone for litte benefit, as users
are usually able to figure it out, just as you did.

Anyway, if you have a concrete suggestion that would improve things,
just send a diff :)
I already updated the libx11-dev package name, it's probably one
example of an apt package renaming :)