xfapplet plugin fvom svn

I am trying to compile it but has the following error:

> checking for libxfce4panel-1.0 >= 4.3.20... 4.3.28
> checking LIBXFCE4PANEL_CFLAGS... -I/usr/include/xfce4/ -I/usr/include/xfce4 -I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include -I/usr/include/pango-1.0 -I/usr/include/cairo -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/atk-1.0
> checking LIBXFCE4PANEL_LIBS... -lxfce4panel -lxfcegui4 -lgtk-x11-2.0 -lxfce4util -lgdk-x11-2.0 -latk-1.0 -lgdk_pixbuf-2.0 -lm -lpangocairo-1.0 -lfontconfig -lXext -lXrender -lXinerama -lXi -lXrandr -lXcursor -lXfixes -lpango-1.0 -lcairo -lX11 -lgobject-2.0 -lgmodule-2.0 -ldl -lglib-2.0
> checking for libxfce4panel-1.0 localedir... not found
> *** You need a bleeding edge version of xfce4-panel svn to ***
> *** compile xfce4-xfapplet-plugin.         

However I've got a xfce4-panel and xfce4-panel-dev from svn: 4.3.0 r19871.