about MySQL install

[Frank]

hi,
    i have questions about install MySQL in FreeBSD 6.0, after type # make it would be display like bottom.

make all-recursive
Making all in .
Making all in include
make all-am
Making all in Docs
Making all in cmd-line-utils
Making all in libedit
Making all in sql-common
Making all in pstack
Making all in aout
Making all in strings
Making all in mysys
Making all in dbug
/bin/sh ../libtool --preserve-dup-deps --tag=CC --mode=link gcc -O3 -DDBUG_OFF -o factorial my_main.o factorial.o libdbug.a
../mysys/libmysys.a ../strings/libmystrings.a -lc_r -lcrypt -lm -lc_r
gcc -O3 -DDBUG_OFF -o factorial my_main.o factorial.o  libdbug.a ../mysys/libmysys.a ../strings/libmystrings.a -lcrypt -lm
../mysys/libmysys.a(my_thr_init.o) (.text+0x5f): In function 'my_thread_global_end':
:undefined reference to 'pthread_cond_timedwait'
*** Error code 1

Stop in /usr/home/frank/mysql-5.0.33/dbug.
*** Error code 1

Stop in /usr/home/frank/mysql-5.0.33.
*** Error code 1

Stop in /usr/home/frank/mysql-5.0.33.


P.S I'm a new, so i don't know how to solve this problem hope you can solve for me easily.


>From Frank