>> OK, try it again with SVN revision 1173253 or newer.
>
> Aargh!
>
> Rebuilt kdebase. FTBFS. Log attached.
>

Looks like you are getting much closer!  Try it again with revision
1173590 or above.

For some reason when I do a build test here these issues don't show up, so
something is different (stricter?) under Slackware.

Tim