Hi Alex,
Sorry for that, I don't know how I failed to notice this!
The function call in SUMA_path_optimize.c line 433 should be:
SDO = SUMA_CreateSegmentDO( N_n, oriented, NodeBased, Stipple,
Label, idcode_str, Parent_idcode_str,
type_not_set, NULL, LineWidth, LineCol,
NodeId, NULL, n0, n1,
colv, thickv);
with the difference being the two parameters "type_not_set, NULL" inserted after "Parent_idcode_str".
If you'd rather not make the change to the code in your hand, I can rebuild the afni_src.tgz archive so that you can download it again.
cheers,
Ziad