Build problems with kdepim/akonadi/resource/knut/

[Brad Hards]

make[2]: *** No rule to make target `/akonadi-kde/kcfg2dbus.xsl', needed by 
`akonadi/resources/knut/org.kde.Akonadi.Knut.Settings.xml'.  Stop.
make[1]: *** [akonadi/resources/knut/CMakeFiles/akonadi_knut_resource.dir/all] 
Error 2
make: *** [all] Error 2

I found this 
qt4_add_dbus_adaptor(knutresource_SRCS
  ${CMAKE_CURRENT_BINARY_DIR}/org.kde.Akonadi.Knut.Settings.xml settings.h 
Settings
)

So I'm guessing that ${CMAKE_CURRENT_BINARY_DIR} is null.

But how, I don't get....

Brad