message: cmake: fix build with CMake 3.9.0
diff: @@ -323,10 +323,7 @@ MACRO(ADD_NATIVE_PRECOMPILED_HEADER _targetName _input)
  get_target_property(_sources ${_targetName} SOURCES)
  foreach(src ${_sources})
  - if(NOT "${src}" MATCHES "\\.mm$"
  - AND NOT "${src}" MATCHES "\\.h$" AND NOT "${src}" MATCHES "\\.hpp$" # header files
  - AND NOT "${src}" MATCHES "^\$" # CMake generator expressions
  - )
  + if("${src}" MATCHES "\\.c(pp|xx)?$")
  get_source_file_property(oldProps "${src}" COMPILE_FLAGS)
  get_source_file_property(oldProps2 "${src}" COMPILE_DEFINITIONS)
  if(NOT oldProps AND NOT oldProps2)
  