That page is to do with libminiupnpc, not specifically Odamex. If I recall correctly that lib itself compiles without any problems, but there's another trickier (gui related if memory serves me correctly) dependency that is a problem.
Been a while since I tried it, but Im pretty sure it was some gui related code/lib rather than the Odamex engine itself that made me put it aside. I may be mistaken, but I think the problematic dependancy of Odamex is the same reason even PRBoom+ doesnt exist for any amiga derived systems.
edit: damn you XDelusion. Between this and your thread on aros-exec Im starting to get the doom modding bug again