Hi! I succesfully compiled dsi-vst after a clean install of ubuntustudio 9.10. but I encountered some problems, luckily solved in the end.
dssi plugins were installed during US installation. wine is installed by default but I had to run winecfg (emulate Windows XP and choose alsa in the audio tab).
I installed the following packages from US:
build-essential wine-dev liblo0-dev dssi-dev (this one installed libjack-dev and libjack0100.0-dev) libasound2-dev
I checked the paths of dssi and ladspa, then I edited the makefile and now DSSDIR and LADSPADIR are /usr/lib/dssi and /usr/lib/ladspa, respectively. I also changed the BINDIR to /usr/bin/ but I think this is irrelevant and it is more correct leaving it alone (usr/local/bin), as this is a local installation (I am not sure about this)
Then, it didn't compile! It seems that some C++ functions (sprintf and one or two more) need 'cstdio'. gcc version is 4.4.1 (Ubuntu 4.4.1-4ubuntu8) .