diff -ruN wacomtablet-3.0.0~beta1.orig/CMakeLists.txt wacomtablet-3.0.0~beta1/CMakeLists.txt
--- wacomtablet-3.0.0~beta1.orig/CMakeLists.txt	2015-10-28 18:53:01.000000000 +0100
+++ wacomtablet-3.0.0~beta1/CMakeLists.txt	2016-04-20 17:41:06.087315610 +0200
@@ -66,5 +66,5 @@
 
 feature_summary(WHAT ALL INCLUDE_QUIET_PACKAGES FATAL_ON_MISSING_REQUIRED_PACKAGES)
 
-include(MacroOptionalAddSubdirectory)
-macro_optional_add_subdirectory( po )
+include(ECMOptionalAddSubdirectory)
+ecm_optional_add_subdirectory( po )