mplayer compiled without warnings, but broken

[Aaron Peterson]

wkstn% uname -a
FreeBSD wkstn.homenet.mine 5.2-CURRENT FreeBSD 5.2-CURRENT #0: Sat Feb 14
23:57:13 EST 2004     root at wkstn.homenet.mine:/usr/obj/usr/src/sys/WKSTN 
i386

wkstn% mplayer /mnt/storage/movies/RevolutionOS.avi
Fatal error 'Spinlock called when not threaded.' at line 83 in file
/usr/src/lib/libpthread/thread/thr_spinlock.c (errno = 0)
zsh: abort (core dumped)  mplayer /mnt/storage/movies/RevolutionOS.avi
wkstn%

bummer.  i read something on the freebsd-questions list about mplayer's
esound dependency breaking it and being fixed soon, however i don't think
this is related...  anyone know if this is known to be broken or is soon
to be fixed?  or is it just me having problems?