on freeBSD compile

[edscott wilson garcia]

I'm getting closer to a working xfce4 on freebsd47. The issue with the
plugins not appearing is gone when compiling with libtool-1.4.3. Xfwm4
also needs libtool-1.4.3 so settings can appear with the settings
manager. 

Problems not yet solved:
- The real kewl pager type option does not appear for xfce4-panel
elements
- The preferences option for xfce4-panel fails with a "Multichannel
Manager Error: no such plugin xfce" error dialog.
- libtool-1.4.3 breaks xffm (configure doesn't set link options for
pthreads and if set manually, core files are dumped after using fork())

Edscott