[v3] use AM_ICONV

[Gabriel Dos Reis]

Benjamin Kosnik <bkoz@redhat.com> writes:

| > So, yes, I agree with Ian.  The error message give no clue. :-(
| > Either the simulator instructions need to be updated, or somehow
| > libstdc++ needs to be fixed.
| 
| The instructions clearly state that --with-newlib is required.

Doh, you're right!  The error reported to me what exactly as Ian
reported.  I have no clue :-(

| This has been a requirement for some time now.

I have no problem with that, as long as I don't have to teach how to
build GCC on simulators in realtimne in class :-).

Thanks!

-- Gaby