[cmake] clean up

CMakeLists.txt

@@ -32,29 +32,13 @@ dune_project()
 dune_enable_all_packages(MODULE_LIBRARIES dunextfunctions
                          VERBOSE)
 
-# add header of this module for header listing
-file(GLOB_RECURSE xtfunctions "${CMAKE_CURRENT_SOURCE_DIR}/dune/*.hh")
-set(COMMON_HEADER ${xtfunctions} ${DUNE_HEADERS})
-
-# add header of dependent modules for header listing
-foreach(_mod ${ALL_DEPENDENCIES})
-        file(GLOB_RECURSE HEADER_LIST "${CMAKE_CURRENT_SOURCE_DIR}/../${_mod}/*.hh")
-        list(APPEND COMMON_HEADER ${HEADER_LIST})
-endforeach(_mod DEPENDENCIES)
-set_source_files_properties(${COMMON_HEADER} PROPERTIES HEADER_FILE_ONLY 1)
-
-#disable most warnings from dependent modules
+#disable most warnings from eigen
 if (EIGEN3_FOUND)
   add_definitions("-isystem ${EIGEN3_INCLUDE_DIR}")
 endif (EIGEN3_FOUND)
-foreach(_mod ${ALL_DEPENDENCIES})
-    dune_module_to_uppercase(_upper_case "${_mod}")
-    if(${_mod}_INCLUDE_DIRS)
-        foreach( _idir ${${_mod}_INCLUDE_DIRS} )
-            add_definitions("-isystem ${_idir}")
-        endforeach( _idir )
-    endif(${_mod}_INCLUDE_DIRS)
-endforeach(_mod DEPENDENCIES)
+
+add_header_listing()
+make_dependent_modules_sys_included()
 
 add_subdirectory(dune)
 add_subdirectory(doc)