libcomparediff2 confusion

[sgclark at kubuntu.org]

dh_auto_configure '--buildsystem=kf5' --parallel  
-- The C compiler identification is GNU 4.9.2
-- The CXX compiler identification is GNU 4.9.2
-- Check for working C compiler: /usr/bin/x86_64-linux-gnu-gcc
-- Check for working C compiler: /usr/bin/x86_64-linux-gnu-gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/x86_64-linux-gnu-g++
-- Check for working CXX compiler: /usr/bin/x86_64-linux-gnu-g++ -- 
works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
CMake Error at /usr/share/cmake-3.0/Modules/FindKDE4.cmake:71 
(message):
  ERROR: Could not find KDE4 kde4-config
Call Stack (most recent call first):
  CMakeLists.txt:5 (find_package)

kf5 looking for kde4config I think it is having an identity crisis, help!
Thanks,
Scarlett