Latest GIT (April 10, short version 5566) broke
building on Slackware
13.1.
Reversing patches 20fc5cd8, ffc39044, and 0f026179 allows building.
<snip>
This is to be expected due to your previous tdelibs FTBFS. Rebuilding and
installing tdelibs from GIT will provide the missing class declaration.
Tim