Error Upgrading XFree86-4-clients

[Warren Liddell]

im Running FreeBSD 6.1-STABLE and the last week or more i have had problems 
trying to upgrade this port .. below is the full work up of trying to install 
the package manually from the ports.  Any assistance into whats happening 
would be appreciated.

==============================
exports/lib   
glxinfo.o -lGLU -lGL -lXext -lX11 -L/usr/X11R6/lib -pthread -lm   -Wl,-rpath,/usr/X11R6/lib -Wl,-rpath-link,/usr/ports/x11/XFree86-4-clients/work/xc/exports/lib
/usr/bin/ld: warning: libstdc++.so.3, needed by /usr/X11R6/lib/libGLU.so, not 
found (try using -rpath or -rpath-link)
/usr/X11R6/lib/libGLU.so: undefined reference to `__rtti_user'
/usr/X11R6/lib/libGLU.so: undefined reference to `__rtti_si'
/usr/X11R6/lib/libGLU.so: undefined reference to `__get_eh_context'
/usr/X11R6/lib/libGLU.so: undefined reference to `__sjthrow'
/usr/X11R6/lib/libGLU.so: undefined reference to `__builtin_vec_new'
/usr/X11R6/lib/libGLU.so: undefined reference to `__builtin_vec_delete'
/usr/X11R6/lib/libGLU.so: undefined reference to `__rtti_class'
/usr/X11R6/lib/libGLU.so: undefined reference to `__builtin_delete'
/usr/X11R6/lib/libGLU.so: undefined reference to `__terminate'
/usr/X11R6/lib/libGLU.so: undefined reference to `__builtin_new'
*** Error code 1

Stop in /usr/ports/x11/XFree86-4-clients/work/xc/programs/glxinfo.
*** Error code 1

Stop in /usr/ports/x11/XFree86-4-clients/work/xc/programs.
*** Error code 1

Stop in /usr/ports/x11/XFree86-4-clients.