xfce4-xmms-controller-plugin Undefined symbol "pthread_mutex_trylock"

[jimmie james]

Installing the multimedia/xfce4-xmms-controller-plugin on 4.10-STABLE,
and relauncing
the xfce4-panel, I'm getting:

** (xfce4-panel:81087): WARNING **: xfce4-panel: module
/usr/X11R6/lib/xfce4/panel-plugins/libxfcexmms.so cannot be opened
(/usr/local/lib/libgthread12.so.3: Undefined symbol
"pthread_mutex_trylock")

Blank /etc/make.conf, libxml2 built without threads(and with just to check)

 
FreeBSD fortytwo.zapto.org 4.10-STABLE FreeBSD 4.10-STABLE #0: Sun Aug
15 23:13:02 EDT 2004    
root at fortytwo.zapto.org:/usr/obj/usr/src/sys/FORTYTWO  i386


Fix, I have no idea.