problem solved!

[Treeve Jelbert]

It all finally compiles.

IN the the end the only changes that I made were

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0011ac3..7992acd 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -78,8 +78,8 @@ set(kcoreaddons_LIBRARIES kcoreaddons)

  set(kwindowsystem_LIBRARIES kwindowsystem)

-set(kconfig_INCLUDE_DIRS   ${kconfig_BINARY_DIR}/src/core
-                           ${kconfig_SOURCE_DIR}/src/core )
+set(kconfig_INCLUDE_DIRS  ${CMAKE_SOURCE_DIR}/tier2/kconfig/src/core
+                          ${CMAKE_BINARY_DIR}/tier2/kconfig/src/core)
  set(kconfig_LIBRARIES kconfigcore kconfiggui)

  # tier1/ already builds standalone, so it should not get any include 
dirs from here.



My problems were cause by having specified KDE_SKIP_BUILD_SETTINGS=1 on 
the cmake line