* GNUmakefile: Add description of 'extraclean'.
* Makefile.in (extraclean_dirs): Add lwlib.
* lwlib/Makefile.in (clean mostlyclean extraclean): Add
'extraclean' target.
* lisp/Makefile.in (extraclean): Remove ${loaddefs}, not just
${LOADDEFS}. Delete all backup and autosave files.
This subdirectory contains the Lucid Widget Library (lwlib), which provides a uniform interface to a few different X toolkits. The library was written by Lucid, Inc and released under the terms of the GPL version 1 (or later). It is not considered part of GNU Emacs. This version of the library differs from the original as described in the ChangeLog.1 file.