Hmm, seems to want to be allowed to exclusively create /opt. Unfortunately espeak does the same:
Nokia-N900-02-8:~# dpkg -l espeak-data libsdl-gles1.2-1 Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad) ||/ Name Version Description +++-==============-==============-============================================ ii espeak-data 1.43.03 eSpeak speech data files ii libsdl-gles1.2 1.0.0 OpenGL|ES library for Simple DirectMedia Lay