message: cmake: avoid unnecessary files creation in ocv_cmake_configure()
diff: @@ -32,8 +32,8 @@ function(ocv_cmake_eval var_name)
  endfunction()
  macro(ocv_cmake_configure file_name var_name)
  - configure_file(${file_name} "${CMAKE_BINARY_DIR}/CMakeConfig-${var_name}.cmake" ${ARGN})
  - file(READ "${CMAKE_BINARY_DIR}/CMakeConfig-${var_name}.cmake" ${var_name})
  + file(READ "${file_name}" __config)
  + string(CONFIGURE "${__config}" ${var_name} ${ARGN})
  endmacro()
  macro(ocv_update VAR)
  