--- CMakeLists.txt.orig 2013-05-01 05:04:34.000000000 +1000 +++ CMakeLists.txt 2015-12-10 20:43:51.351800988 +1100 @@ -9,6 +9,7 @@ include(FindPkgConfig) include(KDE4Defaults) +include(CheckIncludeFiles) include(ConfigureChecks.cmake) message(STATUS "X randr is required, found: " ${XRANDR_1_3_FOUND})