--- CMake/common/CppcheckTargets.cmake.orig	2014-10-03 15:04:16.000000000 +0200
+++ CMake/common/CppcheckTargets.cmake	2014-12-20 18:25:39.845494349 +0100
@@ -83,6 +83,7 @@
 
     get_target_property(_cppcheck_sources "${_name}" SOURCES)
     set(_files)
+    if(_cppcheck_sources)
     foreach(_source ${_cppcheck_sources})
       get_source_file_property(_cppcheck_lang "${_source}" LANGUAGE)
       get_source_file_property(_cppcheck_loc "${_source}" LOCATION)
@@ -90,6 +91,7 @@
         list(APPEND _files "${_cppcheck_loc}")
       endif()
     endforeach()
+    endif()
 
     if(NOT _files) # nothing to check
       return()
--- CMake/common/CpplintTargets.cmake.orig	2014-10-03 15:04:16.000000000 +0200
+++ CMake/common/CpplintTargets.cmake	2014-12-20 17:39:11.122277997 +0100
@@ -82,6 +82,7 @@
     get_target_property(_cpplint_sources "${_name}" SOURCES)
     set(_files)
     #set(_exclude_pattern ".*moc_.*\\.cxx|Buildyard/Build")
+    if(_cpplint_sources)
     foreach(_source ${_cpplint_sources})
       get_source_file_property(_cpplint_lang "${_source}" LANGUAGE)
       get_source_file_property(_cpplint_loc "${_source}" LOCATION)
@@ -89,6 +90,7 @@
         list(APPEND _files "${_cpplint_loc}")
       endif("${_cpplint_lang}" MATCHES "CXX" AND NOT ${_cpplint_loc} MATCHES ${add_cpplint_EXCLUDE_PATTERN})
     endforeach(_source ${_cpplint_sources})
+    endif()
 
     if(NOT _files) # nothing to check
       return()
--- CMake/common/clangcheckTargets.cmake.orig	2014-10-03 15:04:16.000000000 +0200
+++ CMake/common/clangcheckTargets.cmake	2014-12-20 13:41:11.706210588 +0100
@@ -40,6 +40,7 @@
   set(_exclude_pattern ".*moc_.*\\.cxx$") # Qt moc files
 
   get_target_property(_clangcheck_sources "${_name}" SOURCES)
+  if(_clangcheck_sources)
   set(_files)
   foreach(_source ${_clangcheck_sources})
     get_source_file_property(_clangcheck_lang "${_source}" LANGUAGE)
@@ -50,6 +51,7 @@
       list(APPEND _files "${_clangcheck_loc}")
     endif()
   endforeach()
+  endif()
 
   if(NOT _files) # nothing to check
     return()