>> The new feature should be present in SVN revision 1174561
>> or higher.  It
>> will detect when libcarddav or libcaldav are not present
>> and automatically
>> deactivate the affected resource(s).
>
> Not sure whether I understand correctly. I removed the libcaldav package
> and rebuilt kdepim. I have libical installed because I understood that the
> package is a requirement.
>
> FTBFS. Log attached.
>

That is a strange error; I do not know what would cause it.  Try without
the -j4 flag (i.e. a single-core build) and see what happens.

Tim