Hi,
I got the same problem with the SDK when I tried to use it in a regular distribution ( debian unstable ). So I followed the instruction at the pdaxrom homepage and I used the live CD for x86. The problem with libiconv was solved, but there are some some library resolution problem relatet with path's that don't exist and you can't create it, there ar also some missing package ( I don't remeber exactly which one).
Maybe you could use the native sdk,it is slower, but I have allready compile some packages without any problem.
Best regards
Carlos F.