kannel compile error

Hi all 
i tried to compile kannel 1.1.5 today but i am getting the following message

  ++++++++++++++++++++++++++++

  run# make

  ar rc libgw.a
  ranlib libgw.a
  ar rc libwmlscript.a
  ranlib libwmlscript.a
  ar rc libwap.a
  ranlib libwap.a
  ar rc libgwlib.a
  ranlib libgwlib.a
  gcc -D_REENTRANT=1 -I. -g -O2 -I/usr/local/include/libxml2 -I/usr/local/include/
  libxml2/libxml -o wmlscript/wmlsc.o -c wmlscript/wmlsc.c
  In file included from gwlib/charset.h:16,
                   from gwlib/gwlib.h:36,
                   from wmlscript/wmlsc.c:29:
  /usr/local/include/libxml2/libxml/encoding.h:30: giconv.h: No such file or directory
  *** Error code 1

  Stop in /usr/home/cyber/gateway-1.1.5. +++++++++++++++++++++++++++++++++++++++++++++
  i am running libxml2-2.4.3_1     
  what am i going wrong?