I was recompiling SEQV4L.072 in order to make some changes to the remote midi functions in seq_ui.c . But it appeared to me that typedef msd_state_t is missing in tasks.c of seqv4.072 (needed for seqv4light). I took this from revision 1311 on ucapps. and pasted it in: problem gone.
Must be something with the snapshot then (I.e my local copy of the svn?) . I found the same page on the web, was only confused by the 1311 version number.
I did svn co svn://svnmios.midibox.org/mios32 from the terminal on macosx 10.7.5. Strange huh? I ll make a completely new snapshot then.