CMP0040 ------- .. |REMOVED_IN_CMAKE_VERSION| replace:: 4.0 .. include:: include/REMOVED_PROLOGUE.rst The target in the ``TARGET`` signature of :command:`add_custom_command` must exist and must be defined in the current directory. CMake 2.8.12 and lower silently ignored a custom command created with the ``TARGET`` signature of :command:`add_custom_command` if the target is unknown or was defined outside the current directory. The ``OLD`` behavior for this policy is to ignore custom commands for unknown targets. The ``NEW`` behavior for this policy is to report an error if the target referenced in :command:`add_custom_command` is unknown or was defined outside the current directory. .. |INTRODUCED_IN_CMAKE_VERSION| replace:: 3.0 .. |WARNED_OR_DID_NOT_WARN| replace:: warned .. include:: include/REMOVED_EPILOGUE.rst
