function(ShowCMakeVars)
  get_cmake_property(_variableNames VARIABLES)
  list(SORT _variableNames)
  foreach(_variableName ${_variableNames})
    if(ARGV0)
      unset(MATCHED)
      string(REGEX MATCH ${ARGV0} MATCHED ${_variableName})
      if(NOT MATCHED)
        continue()
      endif()
    endif()
    message(STATUS "${_variableName}=${${_variableName}}")
  endforeach()
endfunction()