libxcb-related breakage in ports

[george+freebsd at m5p.com]

I'm stuck after doing a csup ports-supfile over the weekend, followed
by portmaster -a -D.

uname -a:

FreeBSD wonderland.m5p.com 8.2-STABLE FreeBSD 8.2-STABLE #3: Wed Jan 25 19:51:29 EST 2012     george at wonderland.m5p.com:/usr/obj/usr/src/sys/WONDERLAND  amd64

When I get to trying to compile x11-wm/xfce4-wm, it dies in the
following way:

Making all in settings-dialogs
gmake[2]: Entering directory `/usr/ports/x11-wm/xfce4-wm/work/xfwm4-4.8.3/settings-dialogs'
gmake  all-am
gmake[3]: Entering directory `/usr/ports/x11-wm/xfce4-wm/work/xfwm4-4.8.3/settings-dialogs'
  CC     xfwm4_settings-xfwm4-settings.o
  CCLD   xfwm4-settings
  CC     xfwm4_tweaks_settings-tweaks-settings.o
  CCLD   xfwm4-tweaks-settings
  CC     xfwm4_workspace_settings-workspace-settings.o
  CCLD   xfwm4-workspace-settings
libtool: link: cannot find the library `/usr/local/lib/libxcb-aux.la' or unhandled argument `/usr/local/lib/libxcb-aux.la'
gmake[3]: *** [xfwm4-workspace-settings] Error 1
gmake[3]: Leaving directory `/usr/ports/x11-wm/xfce4-wm/work/xfwm4-4.8.3/settings-dialogs'
gmake[2]: *** [all] Error 2

There is no libxcb-aux anywhere, nor can I find any references to xcb,
libxcb, or libxcb-aux anywhere in /usr/ports/x11-wm/xfce4-wm and its
subdirectories.  The same problem occurs with x11-wn/xfce4-panel (and
probably other ports, too).

Backing up my ports tree to March 6, when I last remember being able to
compile everythin, doesn't help.

Deleting all xfce4-related packages doesn't help.

Any suggestions?  More information needed?           -- George Mitchell