mplayer borked with libpthread + feb4th Current

Well i installed a snapshot onto my laptop. i installed mplayeyer
seem it seems to have problems. With mplayer i can't do anything without it 
crashing. FYI after setting up libmap.conf to point to libc_r mplayer works
fine.
> mplayer
Fatal error 'Spinlock called when not threaded.' at line 83 in file /usr/src/lib/libpthread/thread/thr_spinlock.c (errno = 0)
Abort (core dumped)
> 

(gdb) where
#0  0x28666edf in kill () from /lib/libc.so.5
#1  0x284ec966 in raise () from /usr/lib/libpthread.so.1
#2  0x286d2052 in abort () from /lib/libc.so.5
#3  0x28502e5f in pthread_testcancel () from /usr/lib/libpthread.so.1
#4  0x284efe75 in _spinlock () from /usr/lib/libpthread.so.1
#5  0x284efeff in _spinlock_debug () from /usr/lib/libpthread.so.1
#6  0x2870cb5b in _thread_fd_table_init () from /usr/lib/libc_r.so.5
#7  0x2870afe2 in _thread_init () from /usr/lib/libc_r.so.5
#8  0x28700769 in _thread_init_hack () from /usr/lib/libc_r.so.5
#9  0x2870df32 in _find_thread () from /usr/lib/libc_r.so.5
#10 0x286fcb36 in _init () from /usr/lib/libc_r.so.5
#11 0x28292973 in _rtld () from /libexec/ld-elf.so.1

XF-4 and mplayer were build from up todate ports from the 5th i think.

Here are all the packages i'm using.

ORBit-0.5.17_2                          lame-3.95.1_1
XFree86-4.3.0,1                         lcms-1.09,1
XFree86-FontServer-4.3.0_3              libiconv-1.9.1_3
XFree86-Server-4.3.0_12                 libmng-1.0.5_1
XFree86-clients-4.3.0_6                 libtool-1.3.5_1
XFree86-documents-4.3.0                 libtool-1.5
XFree86-font100dpi-4.3.0                linux-netscape-navigator-4.8
XFree86-font75dpi-4.3.0                 linux_base-7.1_6
XFree86-fontCyrillic-4.3.0              lynx-ssl-2.8.4.1d
XFree86-fontDefaultBitmaps-4.3.0        m4-1.4_1
XFree86-fontEncodings-4.3.0             mozilla-1.6_2,2
XFree86-fontScalable-4.3.0              mplayer-0.92.0_5
XFree86-libraries-4.3.0_6               mplayer-fonts-0.50
Xft-2.1.2_1                             mplayerxp-0.1.9_2
autoconf-2.13.000227_5                  nasm-0.98.38_1,1
automake-1.4.5_9                        netscape-remote-1.0_1
bash-2.05b.007                          netscape-wrapper-2000.07.07
blackbox-0.65.0                         nspr-4.4.1_1
boxtools-0.65.0                         perl-5.8.2_4
cvsup-without-gui-16.1h                 pkgconfig-0.15.0
dri-4.3.0,1                             png-1.2.5_3
expat-1.95.6_1                          popt-1.6.4_2
fontconfig-2.2.90_4                     racoon-20040116a
freetype2-2.1.5_2                       rc_subr-1.16
gettext-0.12.1                          rpm-3.0.6_9
gettext-0.13.1                          ruby-1.6.8.2003.10.15
glib-1.2.10_10                          unzip-5.50_2
gmake-3.80_1                            win32-codecs-2.0.90_1,1
gtk-1.2.10_11                           wrapper-1.0_3
imake-4.3.0_2                           zip-2.3_1
jpeg-6b_1

The only kernel config change i've made was to disable i486 and i586
and add the following.
# no reason to trust wep ;)
options         IPSEC
options         IPSEC_ESP