problems while compiling in freebsd4.5

[Oleg Zhavoronkov <skylark@astgroup.ru>]

Hello guys!!
Has anyone experience of building sn5.0 on freebsd?
i try install SN5.0 on my freebsd4.5 box, but get some errors while
compiling.
My operations are:
mkdir /usr/source
mkdir /usr/local/sn
cd /usr/source
tar xzvf SN50-010322-source.tar.gz
mkdir build
cd ./build
../source/configure --prefix=/usr/local/sn
......................
make all-snavigator > sn.log
cat sn.log:
gcc -c -g -O2 -W -Wall    -I../../../source/tcl8.1/unix/../generic -I../../../source/tcl8.1/unix  -DHAVE_GETCWD=1 -DHAVE_OPENDIR=1 -DHAVE_STRSTR=1 -DHAVE_STRTOL=1 -DHAVE_TMPNAM=1 -DHAVE_WAITPID=1 -DNO_VALUES_H=1 -DHAVE_UNISTD_H=1 -DUSE_TERMIOS=1 -DHAVE_SYS_TIME_H=1 -DTIME_WITH_SYS_TIME=1 -DHAVE_TM_ZONE=1 -DHAVE_TM_GMTOFF=1 -DHAVE_ST_BLKSIZE=1 -DSTDC_HEADERS=1 -DNEED_MATHERR=1 -DRETSIGTYPE=void -DHAVE_SIGNED_CHAR=1 -DHAVE_SYS_IOCTL_H=1 -DHAVE_SYS_FILIO_H=1          -DTCL_SHLIB_EXT=\".so\" ../../../source/tcl8.1/unix/../unix/tclAppInit.c
gcc  tclAppInit.o -L/usr/source/build/tcl8.1/unix -ltcl81 -lm -lc  -o tclsh
*** Error code 1

Stop in /usr/source/build/tcl8.1/unix.
*** Error code 1

Stop in /usr/source/build/tcl8.1.
*** Error code 1

Stop in /usr/source/build.
Looks like something go wrong in tcl directory while compiling right
from the start. Yes, there no libtcl81.a in ../build/tcl8.1/unix
directory.there no this library in this place ever.i didn't find this file in
tarball, so i think this library must be compiled before compiling
others, right? So i think there something wrong
in configure.in or makefile.in (unfortunately i'm not familiar with
autoconf).
Can anyone help me?
Sorry for bad english
Oleg Zhavoronkov