xfwm4 needs GTK 2.14 to compile. Compilation fails with the error below:
xfwm4-settings.c:1205: undefined reference to `gtk_selection_data_get_data'
The documentation says gtk_selection_data_get_data was added in version 2.14 of GTK and according to the wiki Xfce 4.6 should depend on GTK 2.10.
 = http://library.gnome.org/devel/gtk/stable/gtk-Selections.html#gtk-selection-data-get-data
 = http://wiki.xfce.org/releng/4.6/roadmap
Yes, well spotted!
Fixed in rev. 29352.
Whoops again :). It shouldn't be GLIB_CHECK_VERSION (2,14,0) but GTK_CHECK_VERSION
yes, rwooops :(