arm-elf-gcc3 fails to build on Leopard

[billy@…]

arm-elf-gcc3 fails to build under leopard. See errors below:

ar rc libbackend.a alias.o bb-reorder.o bitmap.o builtins.o caller-save.o calls.o cfg.o cfganal.o cfgbuild.o cfgcleanup.o cfglayout.o cfgloop.o cfgloopanal.o cfgloopmanip.o loop-init.o loop-unswitch.o loop-unroll.o cfgrtl.o combine.o conflict.o convert.o coverage.o cse.o cselib.o dbxout.o debug.o df.o diagnostic.o dojump.o doloop.o dominance.o dwarf2asm.o dwarf2out.o emit-rtl.o except.o explow.o expmed.o expr.o final.o flow.o fold-const.o function.o gcse.o genrtl.o ggc-common.o global.o graph.o gtype-desc.o haifa-sched.o hooks.o ifcvt.o insn-attrtab.o insn-emit.o insn-modes.o insn-extract.o insn-opinit.o insn-output.o insn-peep.o insn-recog.o integrate.o intl.o jump.o  langhooks.o lcm.o lists.o local-alloc.o loop.o optabs.o options.o opts.o params.o postreload.o predict.o print-rtl.o print-tree.o value-prof.o profile.o ra.o ra-build.o ra-colorize.o ra-debug.o ra-rewrite.o real.o recog.o reg-stack.o regclass.o regmove.o regrename.o reload.o reload1.o reorg.o resource.o rtl.o rtlanal.o rtl-error.o sbitmap.o sched-deps.o sched-ebb.o sched-rgn.o sched-vis.o sdbout.o sibcall.o simplify-rtx.o sreal.o stmt.o stor-layout.o stringpool.o targhooks.o timevar.o toplev.o tracer.o tree.o tree-dump.o unroll.o varasm.o varray.o version.o vmsdbgout.o xcoffout.o alloc-pool.o et-forest.o cfghooks.o bt-load.o pretty-print.o ggc-page.o web.o arm.o  host-default.o hashtable.o tree-inline.o tree-optimize.o cgraph.o cgraphunit.o
ranlib: file: libbackend.a(doloop.o) has no symbols
ranlib: file: libbackend.a(reorg.o) has no symbols
ranlib: file: libbackend.a(vmsdbgout.o) has no symbols
ranlib: file: libbackend.a(xcoffout.o) has no symbols
ranlib libbackend.a
ranlib: file: libbackend.a(doloop.o) has no symbols
ranlib: file: libbackend.a(reorg.o) has no symbols
ranlib: file: libbackend.a(vmsdbgout.o) has no symbols
ranlib: file: libbackend.a(xcoffout.o) has no symbols
cc -no-cpp-precomp   -O2 -DIN_GCC -DCROSS_COMPILE  -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long    -DHAVE_CONFIG_H  -o cc1 \
		c-parse.o c-lang.o c-pretty-print.o stub-objc.o attribs.o c-errors.o c-lex.o c-pragma.o c-decl.o c-typeck.o c-convert.o c-aux-info.o c-common.o c-opts.o c-format.o c-semantics.o c-incpath.o cppdefault.o c-ppoutput.o c-cppbuiltin.o prefix.o c-objc-common.o c-dump.o c-pch.o libcpp.a  main.o libbackend.a ../libiberty/libiberty.a ../intl/libintl.a -L/opt/local/lib -liconv 
Undefined symbols:
  "_iconv_close", referenced from:
      __cpp_destroy_iconv in libcpp.a(cppcharset.o)
      __cpp_destroy_iconv in libcpp.a(cppcharset.o)
      __cpp_convert_input in libcpp.a(cppcharset.o)
  "_iconv", referenced from:
      _convert_using_iconv in libcpp.a(cppcharset.o)
      _convert_using_iconv in libcpp.a(cppcharset.o)
  "_iconv_open", referenced from:
      _init_iconv_desc in libcpp.a(cppcharset.o)
ld: symbol(s) not found
collect2: ld returned 1 exit status
make[1]: *** [cc1] Error 1
make: *** [all-gcc] Error 2

Warning: the following items did not execute (for arm-elf-gcc3): org.macports.activate org.macports.build org.macports.destroot org.macports.install
Error: Status 1 encountered during processing.