libiconv doesn't compile

[Vittorio]

I tried 
cd /usr/ports/converters/libiconv
make install

but.......
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if test -n ""; then install  -o root -g wheel -m 444  /usr/local/lib/.
new && mv /usr/local/lib/.new /usr/local/lib/ ; fi
cd srclib && make 
install prefix='/usr/local' exec_prefix='/usr/local' 
libdir='/usr/local/lib'
cd src && make install prefix='/usr/local' 
exec_prefix='/usr/local' libdir='/usr/local/lib'
test `ls -ld . | sed -
e 's/^d\(.........\).*/\1/'` = rwxrwxrwx || chmod 777 .
if [ ! -d 
/usr/local ] ; then /bin/sh ../autoconf/mkinstalldirs /usr/local ; fi
if [ ! -d /usr/local ] ; then /bin/sh ../autoconf/mkinstalldirs 
/usr/local ; fi
if [ ! -d /usr/local/bin ] ; then /bin/sh ..
/autoconf/mkinstalldirs /usr/local/bin ; fi
case "freebsd6.0" in  
hpux*) cc  `if test -n ''; then  /usr/local/bin; fi` iconv.o ..
/srclib/libicrt.a -L/usr/local/lib -liconv -lintl -o iconv;;  freebsd*) 
/bin/sh ../libtool --mode=link cc  `if test -n ''; then  
/usr/local/bin; fi` iconv.o ../srclib/libicrt.a ../lib//libiconv.la -
lintl -o iconv;;  *) /bin/sh ../libtool --mode=link cc  `if test -n ''; 
then  /usr/local/bin; fi` iconv.o ../srclib/libicrt.a 
/usr/local/lib/libiconv.la -lintl -o iconv;;  esac
cc iconv.o -o .
libs/iconv  ../srclib/libicrt.a ../lib//.libs/libiconv.so -lintl -Wl,--
rpath -Wl,/usr/local/lib
/usr/bin/ld: cannot find -lintl
*** Error code 
1
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What's the matter with it?

Ciao
Vittorio