When building the xfdesktop SVN sources (rev. 20316) with the
--disable-desktop-icons option, the build fails with the following error:

 gcc -DHAVE_CONFIG_H -I. -I. -I.. -I.. -I../common -I../src
-I/usr/local/include/xfce4 -I/usr/X11R6/include -I/usr/include/cairo
-I/usr/include/freetype2 -I/usr/include/libpng12 -I/opt/gnome/include/gtk-2.0
-I/opt/gnome/lib/gtk-2.0/include -I/opt/gnome/include/pango-1.0
-I/opt/gnome/include/glib-2.0 -I/opt/gnome/lib/glib-2.0/include
-I/opt/gnome/include/atk-1.0 -DLOCALEDIR=\"/usr/local/share/locale\"
-DDATADIR=\"/usr/local/share\" -DBINDIR=\"/usr/local/bin\" -g -O2 -MT
backdrop_settings_la-behavior-settings.lo -MD -MP -MF
.deps/backdrop_settings_la-behavior-settings.Tpo -c behavior-settings.c  -fPIC
-DPIC -o .libs/backdrop_settings_la-behavior-settings.o
behavior-settings.c: In function 'set_di_option':
behavior-settings.c:129: error: 'desktop_icon_style' undeclared (first use in
this function)
behavior-settings.c:129: error: (Each undeclared identifier is reported only once
behavior-settings.c:129: error: for each function it appears in.)
make[2]: *** [backdrop_settings_la-behavior-settings.lo] Error 1
make[2]: Leaving directory `/home/astolk/svn/xfce-core/xfdesktop/settings'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/astolk/svn/xfce-core/xfdesktop'
make: *** [all] Error 2


Reproducible: Always
Steps to Reproduce:
1. run autogen/configure script with --disable-desktop-icons
2. run make
3. 

Actual Results:  
(See above)

Expected Results:  
Well, it ought to compile, obviously

For what it's worth, my machine is running SuSE 10.0, the GTK+ version is 2.8.3.