Build problems (SVN HEAD / wxMac)

[Jim]

Hi, I'm trying to build wxWidgets head on Leopard, and I'm getting the
linker errors:

Undefined symbols:
  "_iconv_close", referenced from:
      wxMBConv_iconv::~wxMBConv_iconv()in monodll_strconv.o
      wxMBConv_iconv::~wxMBConv_iconv()in monodll_strconv.o
      wxMBConv_iconv::~wxMBConv_iconv()in monodll_strconv.o
      wxMBConv_iconv::~wxMBConv_iconv()in monodll_strconv.o
  "_iconv_open", referenced from:
      wxMBConv_iconv::wxMBConv_iconv(char const*)in monodll_strconv.o
      wxMBConv_iconv::wxMBConv_iconv(char const*)in monodll_strconv.o
      wxMBConv_iconv::wxMBConv_iconv(char const*)in monodll_strconv.o
      wxMBConv_iconv::wxMBConv_iconv(char const*)in monodll_strconv.o

My configure looks like:
../configure --prefix=/opt/wx29x --with-mac --with-opengl --enable-
geometry --enable-graphics-ctx --enable-sound --with-sdl --enable-
mediactrl --enable-display --enable-monolithic --enable-unicode --with-
libjpeg=builtin --with-libpng=builtin --with-libtiff=builtin --with-
zlib=builtin

What could I be doing wrong?  (or what dependancy would give me
_iconv_close?)