出现如下错误信息：
www# make
make -s all-recursive
Making all in libsystem
Making all in libBBS
Making all in rzsz
Making all in src
Making all in daemon
Making all in local_utl
Making all in mail2bbs
Making all in service
Making all in pip
Making all in worker
Making all in personaldns
Making all in innbbsd
  [Linking innbbsd]
gcc -DGETRUSAGE -DUSE_NCM_PATCH -DPGP5 -DFirebirdBBS -DDBZDEBUG -DFILTER -DBIG2GB -DGB2BIG -I../src -DFREEBSD -I/usr/local/include/mysql -o .libs/innbbsd innbbsd-nocem.o innbbsd-inndchannel.o innbbsd-innbbsd.o innbbsd-connectsock.o innbbsd-rfc931.o innbbsd-daemon.o innbbsd-file.o innbbsd-pmain.o innbbsd-parsdate.o innbbsd-his.o innbbsd-dbz.o innbbsd-closeonexec.o innbbsd-dbztool.o innbbsd-inntobbs.o innbbsd-echobbslib.o innbbsd-receive_article.o innbbsd-qp_conv.o innbbsd-lang.o innbbsd-r_port.o innbbsd-filter.o innbbsd-wildmat.o  -L/usr/home/bbs/kbs_bbs/libBBS /usr/home/bbs/kbs_bbs/libBBS/.libs/libBBS.so -L/usr/lib -L/usr/local/lib -L/usr/local/lib/mysql -L/usr/home/bbs/kbs_bbs/libsystem /usr/home/bbs/kbs_bbs/libsystem/.libs/libsystem.so /usr/local/lib/mysql/libmysqlclient.so -lcrypt -lm -lz -lpthread -Wl,--rpath -Wl,/home/bbs/lib -Wl,--rpath -Wl,/usr/local/lib/mysql
innbbsd-qp_conv.o(.text+0x15f): In function `str_iconv':
: undefined reference to `libiconv_open'
innbbsd-qp_conv.o(.text+0x1b9): In function `str_iconv':
: undefined reference to `libiconv'
innbbsd-qp_conv.o(.text+0x24e): In function `str_iconv':
: undefined reference to `libiconv_close'
*** Error code 1

Stop in /usr/home/bbs/kbs_bbs/innbbsd.
*** Error code 1

Stop in /usr/home/bbs/kbs_bbs.
*** Error code 1

Stop in /usr/home/bbs/kbs_bbs.
--
FROM 221.2.106.*