undefined reference to `libiconv_close'

[wjhcoding]

mv -f .deps/alpha-map.Tpo .deps/alpha-map.Plo
/bin/sh ../libtool --tag=CC --mode=link gcc -g -O2 -no-undefined -version-info 4:4:3 -Wl,-version-script -Wl,./libdatrie.map -o libdatrie.la -rpath /usr/local/libdatrie/lib dstring.lo trie-string.lo fileutils.lo darray.lo tail.lo trie.lo alpha-map.lo
libtool: link: gcc -shared -fPIC -DPIC .libs/dstring.o .libs/trie-string.o .libs/fileutils.o .libs/darray.o .libs/tail.o .libs/trie.o .libs/alpha-map.o -g -O2 -Wl,-version-script -Wl,./libdatrie.map -Wl,-soname -Wl,libdatrie.so.1 -o .libs/libdatrie.so.1.3.4
libtool: link: (cd ".libs" && rm -f "libdatrie.so.1" && ln -s "libdatrie.so.1.3.4" "libdatrie.so.1")
libtool: link: (cd ".libs" && rm -f "libdatrie.so" && ln -s "libdatrie.so.1.3.4" "libdatrie.so")
libtool: link: ar cru .libs/libdatrie.a dstring.o trie-string.o fileutils.o darray.o tail.o trie.o alpha-map.o
libtool: link: ranlib .libs/libdatrie.a
libtool: link: ( cd ".libs" && rm -f "libdatrie.la" && ln -s "../libdatrie.la" "libdatrie.la" )
make[2]: Leaving directory /home/devphp/downloads/libdatrie-0.2.11/datrie' Making all in tools make[2]: Entering directory /home/devphp/downloads/libdatrie-0.2.11/tools'
gcc -DHAVE_CONFIG_H -I. -I.. -I.. -g -O2 -MT trietool.o -MD -MP -MF .deps/trietool.Tpo -c -o trietool.o trietool.c
mv -f .deps/trietool.Tpo .deps/trietool.Po
/bin/sh ../libtool --tag=CC --mode=link gcc -g -O2 -o trietool trietool.o ../datrie/libdatrie.la
libtool: link: gcc -g -O2 -o .libs/trietool trietool.o ../datrie/.libs/libdatrie.so -Wl,-rpath -Wl,/usr/local/libdatrie/lib
trietool.o: In function conv_from_alpha': /home/devphp/downloads/libdatrie-0.2.11/tools/trietool.c:170: undefined reference to libiconv'
trietool.o: In function conv_to_alpha': /home/devphp/downloads/libdatrie-0.2.11/tools/trietool.c:125: undefined reference to libiconv'
trietool.o: In function command_delete_list': /home/devphp/downloads/libdatrie-0.2.11/tools/trietool.c:470: undefined reference to libiconv_open'
/home/devphp/downloads/libdatrie-0.2.11/tools/trietool.c:506: undefined reference to libiconv_close' trietool.o: In function command_add_list':
/home/devphp/downloads/libdatrie-0.2.11/tools/trietool.c:368: undefined reference to libiconv_open' /home/devphp/downloads/libdatrie-0.2.11/tools/trietool.c:417: undefined reference to libiconv_close'
trietool.o: In function init_conv': /home/devphp/downloads/libdatrie-0.2.11/tools/trietool.c:108: undefined reference to libiconv_open'
/home/devphp/downloads/libdatrie-0.2.11/tools/trietool.c:109: undefined reference to libiconv_open' trietool.o: In function close_conv':
/home/devphp/downloads/libdatrie-0.2.11/tools/trietool.c:180: undefined reference to libiconv_close' /home/devphp/downloads/libdatrie-0.2.11/tools/trietool.c:181: undefined reference to libiconv_close'
collect2: error: ld returned 1 exit status
make[2]: *** [trietool] Error 1
make[2]: Leaving directory /home/devphp/downloads/libdatrie-0.2.11/tools' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory /home/devphp/downloads/libdatrie-0.2.11'
make: *** [all] Error 2